う
| ウイスキー | whisky | ||
| 上 | うわ | upper, outer, surface | |
| 魚 | うお | fish | 1969 690 |
| 嗽,含嗽 | うがい | gargle, rinse mouth | 2014 |
| 伺う | うかがう | (hon) to visit, to ask, to inquire | 2015 1145 1594 |
| 受け取る | うけとる | to receive, to get, to accept, to take | 2111 1144 602 |
| 兎 | うさぎ | rabbit, hare | 2190 |
| 牛 | うし | cattle, cow | 776 1333 |
| 失う | うしなう | to lose, to part with | 1019 |
| 後 | うしろ | afterwards, since then, in the future | |
| 疑う | うたがう | to doubt, to distrust, to be suspicious of, to suspect | 1434 |
| 内 | うち | inside | |
| 宇宙 | うちゅう | universe, cosmos, space | 1367 |
| 撃つ | うつ | to attack, to defeat, to destroy | |
| 移す | うつす | to remove, to transfer, to infect | 1263 2259 |
| 訴える | うったえる | to sue (a person), to resort to, to appeal to | 1151 |
| 唸る | うなる | to groan, to moan | 2265 |
| 奪う | うばう | to snatch away, to steal | 2266 |
| 馬 | うま | (1) horse, (2) promoted bishop (shogi) | |
| うまい | delicious | 2267 | |
| 生まれ | うまれ | birth, birth-place | 1597 740 741 |
| 梅 | うめ | plum, plum-tree, lowest (of a three-tier ranking system) | 2269 |
| 裏切る | うらぎる | to betray, to turn traitor to, to double-cross | 2268 |
| 煩い | うるさい | noisy, loud, fussy | 2270 |
| 嬉しい | うれしい | happy, glad, pleasant | 2271 |
| 売れる | うれる | to be sold | 694 |
| 嘘 | うそ | lie, falsehood | 2272 |
| 噂 | うわさ | rumour, report, gossip, common talk | 2273 |
| 動かす | うごかす | to move, to shift | 2189 793 |
| 運 | うん(感) | fortune, luck | |
| 運勢 | うんせい | fortune, luck | |
| 運転 | うんてん | operation, motion, driving | 1599 743 |
| 運動 | うんどう | motion, exercise | 1600 |