Jisho

×

9 strokes
Radical:
water 水 (氵, 氺)
Parts:
sea, ocean
Kun:
うみ
On:
カイ
Jōyō kanji, taught in grade 2
JLPT level N4
200 of 2500 most used kanji in newspapers

Speed

Stroke order

On reading compounds

  • 海運 【カイウン】 maritime transport, shipping
  • 海域 【カイイキ】 area of ocean
  • 公海 【コウカイ】 high seas, international waters
  • 内海 【ナイカイ】 inland sea, inlet, gulf, bay, lake

Kun reading compounds

  • 海 【うみ】 sea, ocean, waters
  • 海辺 【うみべ】 beach, seashore, seaside, coast
  • 内海 【ないかい】 inland sea, inlet, gulf, bay, lake
  • 血の海 【ちのうみ】 sea of blood, pool of blood

Readings

Japanese names:
あ、 あま、 うな、 うん、 え、 か、 た、 ひろ、 ひろし、 ぶ、 まち、 まま、 み、 め、 わたる
Mandarin Chinese (pinyin):
hai3
Korean:
hae

Spanish

  • mar
  • océano
  • playa

Portuguese

  • oceano
  • mar

French

  • mer
  • océan
55 A Guide To Reading and Writing Japanese (Florence Sakade)
94 A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot)
88 A Guide To Remembering Japanese Characters (Kenneth G. Henshall)
158 A New Dictionary of Kanji Usage
2553 Classic Nelson (Andrew Nelson)
99 Essential Kanji (P.G. O’Neill)
211 Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki)
1071 Japanese Names (P.G. O’Neill)
3.14 Japanese for Busy People
117 Kanji and Kana (Spahn and Hadamitzky)
117 Kanji and Kana, 2nd Edition (Spahn and Hadamitzky)
454 Kanji in Context (Nishiguchi and Kono)
1184 Kodansha Compact Kanji Guide
459 Kodansha Kanji Dictionary (Jack Halpern)
284 Kodansha Kanji Learner’s Dictionary (Jack Halpern)
344 Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern)
471 Les Kanjis dans la tete (Yves Maniette)
17450 Morohashi
384 New Japanese English Character Dictionary (Jack Halpern)
3133 New Nelson (John Haig)
461 Remembering The Kanji (James Heisig)
500 Remembering The Kanji, 6th edition (James Heisig)
206 The Kanji Way to Japanese Language Power (Dale Crowley)
171 Tuttle Kanji Cards (Alexander Kask)
347 2001 Kanji
3a6.20 The Kanji Dictionary
1-3-6 SKIP code
3815.7 Four corner code
1-19-04 JIS X 0208-1997 kuten code
6d77 Unicode hex code

3 strokes
Radical:
one
Parts:
Variants:

Speed

Stroke order

On reading compounds

  • 上 【ジョウ】 from the standpoint of, from the viewpoint of, with respect to, in terms of, as a matter of, in view of, so far as ... is concerned, on, above, on top of, aboard (a ship or vehicle), the best, top, first class, first grade, first volume (of a two or three-volume set), first book, with my compliments
  • 上位 【ジョウイ】 superior (in rank), top, ranking, higher order (e.g. byte), host computer (of connected device)
  • 口上 【コウジョウ】 vocal message, speech, statement, prologue at the start of a kabuki performance
  • 水上 【スイジョウ】 on the water, aquatic, waterside, water's edge
  • 上人 【ショウニン】 holy priest, saint
  • 上下 【ショウカ】 top and bottom, up and down, high and low, above and below, upper and lower ends, upper and lower classes, ruler and ruled, the government and the people
  • 呈上 【テイジョウ】 giving, gifting, presenting
  • 主上 【シュジョウ】 emperor
  • 上海 【シャンハイ】 Shanghai (China)
  • 上湯 【シャンタン】 top-grade Chinese soup stock

Kun reading compounds

  • 上 【うえ】 above, over, up, top, summit, upper part, head (e.g. of a staircase), surface, on (top of), the above (in a piece of writing), earlier part, superior, better, higher (position, rank, etc.), upper (class), elder, older, senior, with respect to ..., in terms of, as far as ... is concerned, when (e.g. drunk), besides ..., in addition to ..., on top of ..., as well as ..., after ..., upon ..., on ..., with (e.g. full awareness), as a result of ..., since ..., now that ..., because ..., honorable, venerable, dear, emperor, sovereign, shogun, daimyo
  • 上向き 【うわむき】 pointing up, pointing upward, upturn, uptrend, upward tendency
  • 床上 【ゆかうえ】 on a floor, above floor level
  • 一枚上 【いちまいうえ】 one step higher, one better, cut above, one up
  • 上 【かみ】 upper reaches (of a river), upper stream, top, upper part, upper half (of the body), long ago, beginning, first, person of high rank (e.g. the emperor), government, imperial court, imperial capital (i.e. Kyoto), capital region (i.e. Kansai), region (or direction of) the imperial palace, head (of a table), wife, mistress (of a restaurant)
  • 上期 【かみき】 first half of the (fiscal) year
  • 風上 【かざかみ】 windward, upwind
  • 御上 【おかみ】 the Emperor, His Majesty, the government, the authorities, proprietress, hostess, landlady, mistress, your wife, his wife, (one's) master, lord
  • 上げる 【あげる】 to raise, to elevate, to do up (one's hair), to fly (a kite, etc.), to launch (fireworks, etc.), to surface (a submarine, etc.), to land (a boat), to deep-fry, to show someone (into a room), to give, to send someone (away), to enrol (one's child in school), to enroll, to increase (price, quality, status, etc.), to develop (talent, skill), to improve, to make (a loud sound), to raise (one's voice), to earn (something desirable), to praise, to give (an example, etc.), to cite, to summon up (all of one's energy, etc.), to arrest, to nominate, to summon (for geishas, etc.), to offer up (incense, a prayer, etc.) to the gods (or Buddha, etc.), to bear (a child), to conduct (a ceremony, esp. a wedding), (of the tide) to come in, to vomit, to do for (the sake of someone else), to complete ..., to humbly do ...
  • 上がる 【あがる】 to rise, to go up, to come up, to ascend, to be raised, to enter (esp. from outdoors), to come in, to go in, to enter (a school), to advance to the next grade, to get out (of water), to come ashore, to increase, to improve, to make progress, to be promoted, to advance, to be made (of profit, etc.), to occur (esp. of a favourable result), to be adequate (to cover expenses, etc.), to be finished, to be done, to be over, to stop (of rain), to lift, to stop (working properly), to cut out, to give out, to die, to win (in a card game, etc.), to be arrested, to turn up (of evidence, etc.), to be deep fried, to be spoken loudly, to get nervous, to get stage fright, to be offered (to the gods, etc.), to go, to visit, to eat, to drink, to be listed (as a candidate), to serve (in one's master's home), to be complete, to finish, above, north of
  • 上がり 【あがり】 rise, increase, ascent, income, takings, earnings, proceeds, (crop) yield, return, profit, completion, end, finish, end result (e.g. of crafts), how something comes out, finish, finishing (in a board or card game, etc.), green tea (esp. in a sushi restaurant), after (rain, illness, etc.), ex- (e.g. ex-bureaucrat), former
  • 上がり下り 【あがりおり】 going up and down, ascent and descent
  • 芸者上がり 【げいしゃあがり】 ex-geisha, former geisha
  • 上る 【のぼる】 to ascend, to go up, to climb, to ascend (as a natural process, e.g. the Sun), to rise, to go to (the capital), to be promoted, to add up to, to advance (in price), to swim up (a river), to sail up, to come up (on the agenda)
  • 上り 【のぼり】 ascent, climbing, ascending (path), climb, up-train, train heading toward the starting point of its route, upbound (esp. toward Tokyo), upstream, uphill
  • 上り下り 【のぼりくだり】 going up and down, ascent and descent, climb and descent
  • 逆上せる 【のぼせる】 to feel dizzy, to have blood rush to one's head, to lose one's cool, to be obsessed, to be infatuated, to become conceited
  • 上せる 【のぼせる】 to raise, to record, to bring up (a matter), to serve (food), to send some on out
  • 上す 【のぼす】 to raise, to record, to bring up (a matter), to serve (food), to send someone out

Readings

Japanese names:
あおい、 あげ、 い、 か、 かき、 かず、 かん、 こう、 のぼり、 ほつ
Mandarin Chinese (pinyin):
shang4, shang3
Korean:
sang

Spanish

  • arriba
  • encima
  • parte superior
  • cima
  • superficie

Portuguese

  • acima
  • para cima
  • sobre
  • subir
  • galgar
  • em cima
  • escalar

French

  • au-dessus
  • haut
  • monter
  • donner (je te donne)
20 A Guide To Reading and Writing Japanese (Florence Sakade)
23 A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot)
37 A Guide To Remembering Japanese Characters (Kenneth G. Henshall)
21 A New Dictionary of Kanji Usage
798 Classic Nelson (Andrew Nelson)
29 Essential Kanji (P.G. O’Neill)
5 Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki)
47 Japanese Names (P.G. O’Neill)
2.14 Japanese for Busy People
32 Kanji and Kana (Spahn and Hadamitzky)
32 Kanji and Kana, 2nd Edition (Spahn and Hadamitzky)
31 Kanji in Context (Nishiguchi and Kono)
6 Kodansha Compact Kanji Guide
4212 Kodansha Kanji Dictionary (Jack Halpern)
2128 Kodansha Kanji Learner’s Dictionary (Jack Halpern)
2876 Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern)
49 Les Kanjis dans la tete (Yves Maniette)
13 Morohashi
3404 New Japanese English Character Dictionary (Jack Halpern)
10 New Nelson (John Haig)
49 Remembering The Kanji (James Heisig)
50 Remembering The Kanji, 6th edition (James Heisig)
29 The Kanji Way to Japanese Language Power (Dale Crowley)
12 Tuttle Kanji Cards (Alexander Kask)
1272 2001 Kanji
2m1.1 The Kanji Dictionary
4-3-2 SKIP code
2110.0 Four corner code
1-30-69 JIS X 0208-1997 kuten code
4e0a Unicode hex code

15 strokes
Radical:
go, do
Parts:
Variants:
collide, brunt, highway, opposition (astronomy), thrust, pierce, stab, prick
Kun:
つ.く
On:
ショウ
Jōyō kanji, taught in junior high
JLPT level N1
972 of 2500 most used kanji in newspapers

Speed

Stroke order

On reading compounds

  • 衝 【ショウ】 important point (e.g. on a route), important role (responsibility, etc.), opposition
  • 衝撃 【ショウゲキ】 impact, shock, impulse, (psychological) shock
  • 要衝 【ヨウショウ】 important point, strategic position, key point
  • 緩衝 【カンショウ】 shock absorption, buffer action, cushioning, buffer

Kun reading compounds

  • 突く 【つく】 to prick, to stab, to poke, to prod, to push, to thrust, to nudge, to hit, to strike, to use (a cane), to prop oneself up with, to press against (the floor, etc.), to attack, to brave (the rain, etc.)
  • 衝羽根 【つくばね】 Buckleya lanceolata (species of parasitic deciduous shrub)

Readings

Mandarin Chinese (pinyin):
chong1, chong4
Korean:
chung

Spanish

  • avenida
  • lugar importante
  • punto clave
  • chocar

Portuguese

  • colidir
  • o mais forte
  • rodovia
  • oposição (astronomia)
  • atravessar
  • furar
  • apunhalar
  • picar

French

  • collision
  • choc
  • route principale
  • opposition (astronomie)
  • point clé
  • percer
  • poignarder
  • piquer
1411 A Guide To Remembering Japanese Characters (Kenneth G. Henshall)
918 A New Dictionary of Kanji Usage
1638 Classic Nelson (Andrew Nelson)
1117 Essential Kanji (P.G. O’Neill)
1723 Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki)
2264 Japanese Names (P.G. O’Neill)
1772 Kanji and Kana (Spahn and Hadamitzky)
1904 Kanji and Kana, 2nd Edition (Spahn and Hadamitzky)
1388 Kanji in Context (Nishiguchi and Kono)
1616 Kodansha Compact Kanji Guide
893 Kodansha Kanji Dictionary (Jack Halpern)
509 Kodansha Kanji Learner’s Dictionary (Jack Halpern)
658 Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern)
1696 Les Kanjis dans la tete (Yves Maniette)
34069 Morohashi
725 New Japanese English Character Dictionary (Jack Halpern)
1772 New Nelson (John Haig)
1680 Remembering The Kanji (James Heisig)
1811 Remembering The Kanji, 6th edition (James Heisig)
1759 Tuttle Kanji Cards (Alexander Kask)
2053 2001 Kanji
3i12.1 The Kanji Dictionary
1-3-12 SKIP code
2122.1 Four corner code
2110.4 Four corner code
1-30-55 JIS X 0208-1997 kuten code
885d Unicode hex code

8 strokes
Radical:
cave
Parts:
Variants:
stab, protruding, thrust, pierce, prick, collision, sudden
Kun:
つ.く
On:
トツ
Jōyō kanji, taught in junior high
JLPT level N3
521 of 2500 most used kanji in newspapers

Speed

Stroke order

On reading compounds

  • 突入 【トツニュウ】 rushing into, breaking into, storming, plunging into (war, etc.), embarking on (a new venture)
  • 突然 【トツゼン】 abrupt, sudden, unexpected
  • 強制衝突 【キョウセイショウトツ】 collision enforcement
  • 非弾性衝突 【ヒダンセイショウトツ】 inelastic collision

Kun reading compounds

  • 突く 【つく】 to prick, to stab, to poke, to prod, to push, to thrust, to nudge, to hit, to strike, to use (a cane), to prop oneself up with, to press against (the floor, etc.), to attack, to brave (the rain, etc.)
  • 突棒 【つくぼう】 barbed T-shaped weapon for catching thieves (Edo period)
  • 麦突 【むぎつく】 Pungtungia herzi (species of cyprinid)
  • 剣突く 【けんつく】 rough scolding, upbraiding, tongue-lashing, dressing-down

Readings

Mandarin Chinese (pinyin):
tu2, tu1
Korean:
dol

Spanish

  • súbito
  • repentino
  • empuje
  • colisión
  • empujar
  • impulsar
  • impeler

Portuguese

  • apunhalar
  • perfurar
  • empurrar
  • empurrão
  • furar

French

  • poignarder
  • saillant
  • irruption
  • enfoncer
  • percer
  • piquer
1668 A Guide To Remembering Japanese Characters (Kenneth G. Henshall)
574 A New Dictionary of Kanji Usage
3316 Classic Nelson (Andrew Nelson)
913 Essential Kanji (P.G. O’Neill)
785 Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki)
722 Japanese Names (P.G. O’Neill)
898 Kanji and Kana (Spahn and Hadamitzky)
920 Kanji and Kana, 2nd Edition (Spahn and Hadamitzky)
1121 Kanji in Context (Nishiguchi and Kono)
1453 Kodansha Compact Kanji Guide
2772 Kodansha Kanji Dictionary (Jack Halpern)
1421 Kodansha Kanji Learner’s Dictionary (Jack Halpern)
1918 Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern)
1330 Les Kanjis dans la tete (Yves Maniette)
25424 Morohashi
2230 New Japanese English Character Dictionary (Jack Halpern)
4191 New Nelson (John Haig)
1319 Remembering The Kanji (James Heisig)
1416 Remembering The Kanji, 6th edition (James Heisig)
1213 Tuttle Kanji Cards (Alexander Kask)
763 2001 Kanji
3m5.11 The Kanji Dictionary
2-3-5 SKIP code
3043.0 Four corner code
1-38-45 JIS X 0208-1997 kuten code
7a81 Unicode hex code

4 strokes
Radical:
hook
Parts:
Variants:
beforehand, previous, myself, I
Jōyō kanji, taught in grade 3
JLPT level N3
180 of 2500 most used kanji in newspapers

Speed

Stroke order

On reading compounds

  • 予 【ヨ】 I, me
  • 予感 【ヨカン】 presentiment, premonition, hunch, to have a premonition, to have a hunch
  • 起訴猶予 【キソユウヨ】 suspension of indictment, leaving charge on the file
  • 執行猶予 【シッコウユウヨ】 stay of execution, suspended sentence

Kun reading compounds

  • 予め 【あらかじめ】 beforehand, in advance, previously

Readings

Mandarin Chinese (pinyin):
yu2, yu3
Korean:
yeo

Spanish

  • de antemano
  • previo

Portuguese

  • de antemão
  • prévio
  • eu mesmo
  • Eu

French

  • auparavant
  • à l'avance
  • moi
  • je
525 A Guide To Reading and Writing Japanese (Florence Sakade)
425 A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot)
403 A Guide To Remembering Japanese Characters (Kenneth G. Henshall)
160 A New Dictionary of Kanji Usage
271 Classic Nelson (Andrew Nelson)
531 Essential Kanji (P.G. O’Neill)
294 Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki)
62 Japanese Names (P.G. O’Neill)
2.12 Japanese for Busy People
393 Kanji and Kana (Spahn and Hadamitzky)
397 Kanji and Kana, 2nd Edition (Spahn and Hadamitzky)
403 Kanji in Context (Nishiguchi and Kono)
275 Kodansha Compact Kanji Guide
2477 Kodansha Kanji Dictionary (Jack Halpern)
1253 Kodansha Kanji Learner’s Dictionary (Jack Halpern)
1719 Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern)
1607 Les Kanjis dans la tete (Yves Maniette)
231 Morohashi
1983 New Japanese English Character Dictionary (Jack Halpern)
68 New Nelson (John Haig)
1593 Remembering The Kanji (James Heisig)
1719 Remembering The Kanji, 6th edition (James Heisig)
283 The Kanji Way to Japanese Language Power (Dale Crowley)
245 Tuttle Kanji Cards (Alexander Kask)
3553 2001 Kanji
0a4.12 The Kanji Dictionary
2-2-2 SKIP code
2-3-1 SKIP code
1720.2 Four corner code
1-45-29 JIS X 0208-1997 kuten code
4e88 Unicode hex code

7 strokes
Radical:
mound, dam (阝 left) 阜 (阝)
Parts:
ward off, defend, protect, resist
Kun:
ふせ.ぐ
On:
ボウ
Jōyō kanji, taught in grade 5
JLPT level N2
331 of 2500 most used kanji in newspapers

Speed

Stroke order

On reading compounds

  • 防衛施設庁 【ボウエイシセツチョウ】 (Japanese) Defense Facilities Administration Agency (Defence)
  • 防衛 【ボウエイ】 defense, defence, protection
  • 砂防 【サボウ】 erosion control
  • 攻防 【コウボウ】 offense and defense, offence and defence

Kun reading compounds

  • 防ぐ 【ふせぐ】 to defend against, to protect against, to prevent, to avert, to avoid

Readings

Japanese names:
あた、 う、 ほう
Mandarin Chinese (pinyin):
fang2
Korean:
bang

Spanish

  • defender
  • proteger
  • aguantar
  • prevenir
  • presa
  • banco

Portuguese

  • desligar
  • defender
  • proteger
  • resistir

French

  • prévenir (un danger)
  • défendre
  • protéger
  • résister
718 A Guide To Reading and Writing Japanese (Florence Sakade)
812 A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot)
791 A Guide To Remembering Japanese Characters (Kenneth G. Henshall)
325 A New Dictionary of Kanji Usage
4980 Classic Nelson (Andrew Nelson)
680 Essential Kanji (P.G. O’Neill)
983 Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki)
374 Japanese Names (P.G. O’Neill)
513 Kanji and Kana (Spahn and Hadamitzky)
522 Kanji and Kana, 2nd Edition (Spahn and Hadamitzky)
781 Kanji in Context (Nishiguchi and Kono)
725 Kodansha Compact Kanji Guide
320 Kodansha Kanji Dictionary (Jack Halpern)
203 Kodansha Kanji Learner’s Dictionary (Jack Halpern)
242 Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern)
1311 Les Kanjis dans la tete (Yves Maniette)
41576 Morohashi
270 New Japanese English Character Dictionary (Jack Halpern)
6429 New Nelson (John Haig)
1302 Remembering The Kanji (James Heisig)
1399 Remembering The Kanji, 6th edition (James Heisig)
326 The Kanji Way to Japanese Language Power (Dale Crowley)
674 Tuttle Kanji Cards (Alexander Kask)
3645 2001 Kanji
2d4.1 The Kanji Dictionary
1-3-4 SKIP code
1-2-4 SKIP code
7022.7 Four corner code
1-43-41 JIS X 0208-1997 kuten code
9632 Unicode hex code

8 strokes
Radical:
water 水 (氵, 氺)
Parts:
Variants:
method, law, rule, principle, model, system
Kun:
のり
On:
ホウハッホッフラン
Jōyō kanji, taught in grade 4
JLPT level N3
100 of 2500 most used kanji in newspapers

Speed

Stroke order

On reading compounds

  • 法 【ホウ】 law, act, principle, method, mood, dharma, law
  • 法案 【ホウアン】 bill (law), measure
  • 航法 【コウホウ】 sailing, navigation
  • 会社更生法 【カイシャコウセイホウ】 Corporate Rehabilitation Law
  • 法被 【ハッピ】 happi coat, happy coat, workman's livery coat, traditional Japanese straight-sleeved coat
  • 法度 【ハット】 ban, prohibition, taboo, something forbidden, law, ordinance (esp. in the middle ages)
  • 法師 【ホウシ】 Buddhist priest, bonze, layman dressed like a priest, person
  • 法華経 【ホケキョウ】 Lotus Sutra

Kun reading compounds

  • 法 【のり】 rule, law, regulation, model, pattern, teachings of Buddha, Buddhist doctrine, transverse measurement, measurement across, side-slope, slope
  • 法の筵 【のりのむしろ】 preaching place
  • 内法 【うちのり】 inside measure
  • 外法 【そとのり】 outside measurements

Readings

Japanese names:
Mandarin Chinese (pinyin):
fa3, fa4
Korean:
beob

Spanish

  • método
  • ley
  • doctrina

Portuguese

  • método
  • lei
  • regra
  • princípio
  • modelo
  • sistema

French

  • méthode
  • loi
  • règle
  • principe
  • modèle
  • système
513 A Guide To Reading and Writing Japanese (Florence Sakade)
612 A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot)
584 A Guide To Remembering Japanese Characters (Kenneth G. Henshall)
145 A New Dictionary of Kanji Usage
2535 Classic Nelson (Andrew Nelson)
213 Essential Kanji (P.G. O’Neill)
676 Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki)
824 Japanese Names (P.G. O’Neill)
123 Kanji and Kana (Spahn and Hadamitzky)
123 Kanji and Kana, 2nd Edition (Spahn and Hadamitzky)
518 Kanji in Context (Nishiguchi and Kono)
1181 Kodansha Compact Kanji Guide
391 Kodansha Kanji Dictionary (Jack Halpern)
248 Kodansha Kanji Learner’s Dictionary (Jack Halpern)
295 Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern)
758 Les Kanjis dans la tete (Yves Maniette)
17290 Morohashi
333 New Japanese English Character Dictionary (Jack Halpern)
3107 New Nelson (John Haig)
751 Remembering The Kanji (James Heisig)
813 Remembering The Kanji, 6th edition (James Heisig)
100 The Kanji Way to Japanese Language Power (Dale Crowley)
516 Tuttle Kanji Cards (Alexander Kask)
371 2001 Kanji
3a5.20 The Kanji Dictionary
1-3-5 SKIP code
3413.1 Four corner code
1-43-01 JIS X 0208-1997 kuten code
6cd5 Unicode hex code