す
| 巣 | す | nest, rookery, breeding place, beehive, cobweb | 1842 1027 |
| 図 | ず | figure (e.g. Fig 1), drawing, picture, illustration | 1980 685-3 |
| 水準 | すいじゅん | water level, level, standard | 763 |
| 推薦 | すいせん | recommendation | 2121 1402 |
| 推奨 | すいしょう | praise, recommendation | |
| スイッチ | switch | ||
| 随分 | ずいぶん | extremely | 2392 |
| 睡眠 | すいみん | sleep | 2393 |
| 数 | すう | number, figure | |
| 数字 | すうじ | numeral, figure | |
| スープ | (Western) soup | ||
| 末 | すえ | the end of, tip | 618 |
| 末に | すえに | finally | |
| 姿 | すがた | figure, shape, appearance | 1363 |
| スキー | skiing | ||
| 空く | すく | to become empty | 758 |
| 救う | すくう | to rescue from, to help out of | 1046 |
| 優れる | すぐれる | to surpass, to outstrip, to excel | 1340 |
| スケート | skate(s), skating | ||
| 凄い | すごい | terrible, dreadful, terrific, amazing, great | 2394 |
| 少しも | すこしも | anything of, not one bit | 637 |
| 過ごす | すごす | to pass, to spend, to go through, to tide over | 1316 |
| 筋 | すじ | muscle, string, line | 1446 |
| 筋目 | すじめ | lineage, pedigree; fold, crease | |
| 進める | すすめる | to advance, to promote, to hasten | 942 |
| 勧める | すすめる | to recommend, to advise, to encourage | 2395 |
| スター | star | ||
| スタイル | style | ||
| スタンド | stand | ||
| 頭痛 | ずつう | headache | 653 |
| ずっと | consecutively, throughout, a lot | ||
| 素敵 | すてき | lovely, dreamy, beautiful, great | 1268 |
| 素晴らしい | すばらしい | wonderful, splendid, magnificent | 1268 |
| 既に | すでに | already, too late | 2396 |
| 即ち | すなわち | that is, namely, i.e. | 2397 |
| スピーチ | speech | ||
| 全て | すべて | all, the whole, entirely, in general, wholly | 788 |
| 済ませる | すませる | to be finished | 1425 |
| 済みません | すみません(感) | sorry, excuse me! | |
| 隅・角 | すみ | internal angle; horn | 643 |
| 為る | する | to do | 2398 |
| すると | thereupon, hereupon | ||
| 鋭い | するどい | pointed, sharp | 2399 |