Denshi Jisho — Online Japanese dictionary

一端 いっぱし competent enough; pretty good; like other people
Adverb, No-adjective, Usually written using kana alone 
一髪 いっぱつ hair; hair's breadth
Noun 
一半 いっぱん half; part
Noun 
一斑 いっぱん spot (glimpse, outline); sighting
Noun 
一版 いっぱん an edition
Noun 
一飯 いっぱん bowl of rice; meal
Noun 
一匹 いっぴき 1: one animal (small);
2: (Archaism) two-tan bolt of cloth
Noun 
一疋 いっぴき one animal (small)
Noun 
一筆 いっぴつ a few lines; stroke of pen
Adverbial noun, Temporal noun 
一封 いっぷう sealed letter; sealed document; enclosure
Noun 
一幅 いっぷく (a) scroll
Noun 
一服 いっぷく (a) dose; (a) puff; (a) smoke; lull; short rest
Noun, Suru verb 
一腹 いっぷく one litter; one clutch (e.g. eggs)
Noun 
一分 いっぷん (a) minute
Noun 
一片 いっぺん (a) slice; (a) piece
Noun 
一篇 いっぺん piece (of poetry)
Noun 
一編 いっぺん piece (of poetry)
Noun 
一辺 いっぺん side of a geometric shape (e.g. triangle or rectangle)
Noun 
一報 いっぽう information
Noun, Suru verb 
一々 いついつ one by one; separately
Adverb, Noun 
一一 いついつ one by one; separately
Adverb, Noun 
一日 つきたち 1: (Archaism) first day of the month;
2: first ten days of the lunar month
Noun 
一向 ひたすら nothing but; earnest; intent; determined; set on (something)
Na-adjective, Adverb, Usually written using kana alone 
一向 ひたぶる nothing but; earnest; intent; determined; set on (something)
Na-adjective, Adverb, Usually written using kana alone 
一味 ひとあじ unique or peculiar flavor (flavour)
Adverb, Noun 
一汗 ひとあせ doing a job; riding and sweating up a horse
Noun 

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