| 1629 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 1017 | A New Dictionary of Kanji Usage |
| 1637 | Classic Nelson (Andrew Nelson) |
| 1638 | Essential Kanji (P.G. O’Neill) |
| 1286 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 2451 | Japanese Names (P.G. O’Neill) |
| 1422 | Kanji and Kana (Spahn and Hadamitzky) |
| 1511 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 1147 | Kanji in Context (Nishiguchi and Kono) |
| 638 | Kodansha Compact Kanji Guide |
| 894 | Kodansha Kanji Dictionary (Jack Halpern) |
| 510 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 659 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 895 | Les Kanjis dans la tete (Yves Maniette) |
| 10245 | Morohashi |
| 726 | New Japanese English Character Dictionary (Jack Halpern) |
| 1771 | New Nelson (John Haig) |
| 886 | Remembering The Kanji (James Heisig) |
| 951 | Remembering The Kanji, 6th edition (James Heisig) |
| 1760 | Tuttle Kanji Cards (Alexander Kask) |
penetrate, clear, pierce, strike home, sit up (all night)
- On:
- テツ
Jōyō kanji, taught in junior high
JLPT level N1
968 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 徹夜 【テツヤ】 staying up all night
- 徹カラ 【テツカラ】 all-night karaoke
- 冷徹 【レイテツ】 cool-headed, level-headed, hard-headed
- 透徹 【トウテツ】 transparency, clarity, coherence
Readings
- Japanese names:
- あき、 つ、 てっ、 とおる
- Korean:
- cheol
Spanish
- penetrar
- atravesar
- estar en vela
Portuguese
- penetrar
- limpar
- furar
- ficar acordado ( noite toda)
French
- pénétrer
- clair (limpide)
- percer
- toucher (cible)
- toute la nuit (sans dormir)
| 2066 | 2001 Kanji |
| 3i12.2 | The Kanji Dictionary |
| 1-3-12 | SKIP code |
| 2824.0 | Four corner code |
| 1-37-16 | JIS X 0208-1997 kuten code |
| 5fb9 | Unicode hex code |
Jōyō kanji, taught in grade 4
JLPT level N2
867 of 2500 most used kanji in newspapers
Stroke order
On reading compounds
- 底 【テイ】 base (logarithmic, exponential, number system), radix, base (triangle, cone, cylinder, etc.), type, kind, extent, degree
- 底辺 【テイヘン】 base (of a polygon), bottom (of the social scale), lower levels, lower classes, base (e.g. of support), foundation, basis
- 奥底 【オクソコ】 depths, deep place, bottom (of one's heart)
- 水底 【スイテイ】 sea or river bottom
Kun reading compounds
- 底 【そこ】 bottom, sole
- 底入れ 【そこいれ】 bottoming out (of prices)
- 水底 【すいてい】 sea or river bottom
- 奥底 【おくそこ】 depths, deep place, bottom (of one's heart)
Readings
- Korean:
- ji, jeo
Spanish
- fondo
- suelo
- parte más baja
- base
Portuguese
- único
- fundo
- profundidade
- preço baixo
- base
- espécie
- tipo
French
- partie basse
- fond
- semelle
- profondeur
- prix plancher
- base
- sorte
| 475 | A Guide To Reading and Writing Japanese (Florence Sakade) |
| 576 | A Guide To Reading and Writing Japanese 3rd edition (Henshall, Seeley and De Groot) |
| 549 | A Guide To Remembering Japanese Characters (Kenneth G. Henshall) |
| 791 | A New Dictionary of Kanji Usage |
| 1508 | Classic Nelson (Andrew Nelson) |
| 590 | Essential Kanji (P.G. O’Neill) |
| 508 | Japanese Kanji Flashcards (Max Hodges and Tomoko Okazaki) |
| 992 | Japanese Names (P.G. O’Neill) |
| 562 | Kanji and Kana (Spahn and Hadamitzky) |
| 571 | Kanji and Kana, 2nd Edition (Spahn and Hadamitzky) |
| 745 | Kanji in Context (Nishiguchi and Kono) |
| 585 | Kodansha Compact Kanji Guide |
| 3827 | Kodansha Kanji Dictionary (Jack Halpern) |
| 1961 | Kodansha Kanji Learner’s Dictionary (Jack Halpern) |
| 2656 | Kodansha Kanji Learner’s Dictionary, 2nd Edition (Jack Halpern) |
| 1850 | Les Kanjis dans la tete (Yves Maniette) |
| 9262 | Morohashi |
| 3084 | New Japanese English Character Dictionary (Jack Halpern) |
| 1612 | New Nelson (John Haig) |
| 1833 | Remembering The Kanji (James Heisig) |
| 1975 | Remembering The Kanji, 6th edition (James Heisig) |
| 510 | Tuttle Kanji Cards (Alexander Kask) |
| 556 | 2001 Kanji |
| 3q5.3 | The Kanji Dictionary |
| 3-3-5 | SKIP code |
| 0024.2 | Four corner code |
| 1-36-76 | JIS X 0208-1997 kuten code |
| 5e95 | Unicode hex code |