Denshi Jisho — Online Japanese dictionary

うんうん uh-huh; sound indicating agreement; grunting or groaning sound
Interjection 
ウンウン uh-huh; sound indicating agreement; grunting or groaning sound
Interjection 
ウンタイ rape (seed oil plant, Brassica campestris); Chinese colza; yuntai
Noun 
うんたら mumble (used in place of meaningful words in a sentence)
Noun 
ウンダイ rape (seed oil plant, Brassica campestris); Chinese colza; yuntai
Noun 
うんとこ 1: oof (i.e. a grunt of effort);
2: (Adverb) a lot; plenty
Interjection 
ウーハイ oolong tea highball
Noun, Abbreviation, Slang 
ウーハー woofer (speaker system)
Noun 
ウーメラ woomera; womera; Australian aboriginal spear throwing implement
Noun 
萍 うきくさ 1: floating weed;
2:
3: (Usually written using kana alone) greater duckweed (Spirodela polyrhiza); (No-adjective) precarious; unstable
Noun 
鴬 うぐいす 1:
2: (Usually written using kana alone) Japanese bush warbler; Japanese nightingale (Cettia diphone);
3: (Abbreviation) greenish brown; (Noun prefix) having a beautiful voice
Noun 
鶯 うぐいす 1:
2: (Usually written using kana alone) Japanese bush warbler; Japanese nightingale (Cettia diphone);
3: (Abbreviation) greenish brown; (Noun prefix) having a beautiful voice
Noun 
艮 うしとら northeast
Noun, Archaism 
羅 うすもの lightweight fabric or clothing; silk gauze; thin silk
Noun 
秣 うまくさ fodder
Noun 
卜 うらない fortune-telling; divination
Noun 
蠎 うわばみ 1: large snake;
2: (Colloquialism) heavy drinking; heavy drinker
Noun 
生憎 あいにく unfortunately; Sorry, but ...
Common word, Na-adjective, Adverb, Noun, No-adjective, Usually written using kana alone 
生花 いけばな flower arrangement
Common word, Noun 
初陣 ういじん first campaign; one's first battle
Common word, Noun 
上下 うえした 1: top and bottom; up and down; high and low; above and below; upper and lower ends;
2: () upside-down
Common word, Noun 
餓死 うえじに (death from) starvation; starving to death
Common word, Noun, Suru verb, Sensitive 
伺う うかがう 1:
2: (Humble (kenjougo) language) to ask; to inquire; to hear; to be told;
3: to implore (a god for an oracle); to seek direction (from your superior); () (Humble (kenjougo) language) to visit;
4: to speak to (a large crowd at a theatre, etc.)
Common word, Godan verb with u ending, Transitive verb 
請負 うけおい contract (for work); contracting; undertaking
Common word, Noun 
受付 うけつけ 1: reception (desk); information desk;
2: () receipt; acceptance
Common word, Noun 
受取 うけとり receipt
Common word, Noun 

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