| 1 | 一 (いち) |
| (num,pref) (1) one |
| 2 | 一 (ひと) |
| (num,pref) (1) one |
| 3 | 一葦 (いちい) |
| (n) (1) one reed |
| 4 | 一具 (いちぐ) |
| (n) one set |
| 5 | 一期 (いちご) |
| (n) one's life time |
| 6 | 一語 (いちご) |
| (n) one word |
| 7 | 一事 (いちじ) |
| (n) one thing |
| 8 | 一時 (いちじ) |
| (n-adv,n) one hour |
| 9 | 一部 (いちぶ) |
| (n-adv,n) (1) one part |
| 10 | 一分 (いちぶ) |
| (n) one tenth |
| 11 | 一夜 (いちや) |
| (n-adv,n-t) one night |
| 12 | 一利 (いちり) |
| (n) one advantage |
| 13 | 一路 (いちろ) |
| (adv,n) one road |
| 14 | 一羽 (いちわ) |
| (n) one (bird) |
| 15 | 一荷 (いっか) |
| (n) one load |
| 16 | 一騎 (いっき) |
| (n) one horseman |
| 17 | 一機 (いっき) |
| (n) (1) one machine |
| 18 | 一戸 (いっこ) |
| (n) one house |
| 19 | 一佐 (いっさ) |
| (n) colonel (JSDF) |
| 20 | 一兎 (いっと) |
| (n) (arch) one rabbit |
| 21 | 一匕 (いっぴ) |
| (n) (1) (obsc) one spoon |
| 22 | 帰一 (きいつ) |
| (n,vs) united into one |
| 23 | 一重 (ひとえ) |
| (n) one layer |
| 24 | 一日 (ひとえ) |
| (ok) (n) (1) one day |
| 25 | 一つ (ひとつ) |
| (n) one |
| 26 | 一手 (ひとて) |
| (n) (1) one hand |
| 27 | 一日 (ひとひ) |
| (ok) (n) (1) one day |
| 28 | 一間 (ひとま) |
| (n) one room |
| 29 | 一夜 (ひとや) |
| (n-adv,n-t) one night |
| 30 | 一夜 (ひとよ) |
| (n-adv,n-t) one night |
| 31 | 一人 (ひとり) |
| (n) (1) one person |
| 32 | 一 (いちいち) |
| (adv,n) one by |
| 33 | 一々 (いちいち) |
| (adv,n) one by |
| 34 | 一眼 (いちがん) |
| (n) one eye |
| 35 | 一組 (いちくみ) |
| (n) one class |
| 36 | 一遇 (いちぐう) |
| (n) one meeting |
| 37 | 一月 (いちげつ) |
| (n) one month |
| 38 | 一号 (いちごう) |
| (n) number one |
| 39 | 一食 (いちじき) |
| (n) one meal (a day) |
| 40 | 一日 (いちじつ) |
| (n) (1) one day |
| 41 | 一樹 (いちじゅ) |
| (n) a or one tree |
| 42 | 一存 (いちぞん) |
| (n) one's own discretion (idea, responsibility) |
| 43 | 一台 (いちだい) |
| (n) one machine |
| 44 | 一大 (いちだい) |
| (n) one large ... |
| 45 | 一堂 (いちどう) |
| (n) one building (hall, temple, shrine, room) |
| 46 | 一道 (いちどう) |
| (n) one road |
| 47 | 一難 (いちなん) |
| (n) one difficulty |
| 48 | 一日 (いちにち) |
| (n) (1) one day |
| 49 | 一如 (いちにょ) |
| (n) oneness |
| 50 | 一人 (いちにん) |
| (n) (1) one person |
| 51 | 一年 (いちねん) |
| (n) one year |
| 52 | 一倍 (いちばい) |
| (n,vs) one share |
| 53 | 一望 (いちぼう) |
| (n,vs) one sweep (of the eye) |
| 54 | 一眸 (いちぼう) |
| (n,vs) one sweep (of the eye) |
| 55 | 一木 (いちぼく) |
| (n) one tree |
| 56 | 一枚 (いちまい) |
| (n) one thin flat object |
| 57 | 一名 (いちめい) |
| (n) one person |
| 58 | 一面 (いちめん) |
| (n) (1) one face |
| 59 | 一毛 (いちもう) |
| (n) one-tenth of a rin |
| 60 | 一躍 (いちやく) |
| (n-adv,n-t) (at) one bound |
| 61 | 一輪 (いちりん) |
| (n) one flower |
| 62 | 一塊 (いっかい) |
| (n) one lump |
| 63 | 一階 (いっかい) |
| (n) one floor |
| 64 | 一画 (いっかく) |
| (n) one lot |
| 65 | 一獲 (いっかく) |
| (n) one grab |
| 66 | 一攫 (いっかく) |
| (n) one grab |
| 67 | 一郭 (いっかく) |
| (n) one block |
| 68 | 一管 (いっかん) |
| (n) one flute |
| 69 | 一巻 (いっかん) |
| (n) one volume |
| 70 | 一菊 (いっきく) |
| (n) one scoop (of water) |
| 71 | 一挙 (いっきょ) |
| (n-adv,n) one effort |
| 72 | 一間 (いっけん) |
| (n) one ken |
| 73 | 一犬 (いっけん) |
| (n) one dog |
| 74 | 一軒 (いっけん) |
| (n) one house |
| 75 | 一石 (いっこく) |
| (n) one koku (measure) |
| 76 | 一献 (いっこん) |
| (n) one cup (of sake) |
| 77 | 一歳 (いっさい) |
| (n) one-year-old |
| 78 | 一才 (いっさい) |
| (n) one-year-old |
| 79 | 一昨 (いっさく) |
| (n) one previous |
| 80 | 一冊 (いっさつ) |
| (n) one copy (e.g. book) |
| 81 | 一色 (いっしき) |
| (adj-na,n) one color |
| 82 | 一死後 (いっしご) |
| (n) after one out (in Baseball) |
| 83 | 一室 (いっしつ) |
| (n) one room |
| 84 | 一手 (いっしゅ) |
| (n) (1) one hand |
| 85 | 一所 (いっしょ) |
| (n) one place |
| 86 | 一書 (いっしょ) |
| (n) one letter |
| 87 | 一身 (いっしん) |
| (n) oneself |
| 88 | 一心 (いっしん) |
| (adv,n) one mind |
| 89 | 一寸 (いっすん) |
| (n) (1) one sun (approx. 3.03 cm) |
| 90 | 一隻 (いっせき) |
| (n) one boat |
| 91 | 一石 (いっせき) |
| (n) one game (of go) |
| 92 | 一夕 (いっせき) |
| (n-adv,n-t) one evening |
| 93 | 一銭 (いっせん) |
| (n) one-hundredth of a yen |
| 94 | 一艘 (いっそう) |
| (n) one ship or boat |
| 95 | 一択 (いったく) |
| (n) (sl) (only) one option (game slang) |
| 96 | 一段 (いったん) |
| (n) one-tenth hectare |
| 97 | 一端 (いったん) |
| (n) (1) one end |
| 98 | 一反 (いったん) |
| (n) one-tenth hectare |
| 99 | 一通 (いっつう) |
| (n) one copy (of a document) |
| 100 | 一頭 (いっとう) |
| (n) one large animal (horses, cattle, etc.) |