Denshi Jisho — Online Japanese dictionary

一昨日 おととい day before yesterday
Common word, Adverbial noun, Temporal noun 
一昨年 おととし year before last
Common word, Adverbial noun, Temporal noun 
一まず ひとまず for the present; once; in outline
Common word, Adverb, Usually written using kana alone 
一人で ひとりで alone; by oneself; voluntarily; spontaneously; automatically
Common word, Expression 
一押し いちおし 1: recommendation; (something) highly recommended;
2: (Suru verb) to recommend
Noun 
一推し いちおし 1: recommendation; (something) highly recommended;
2: (Suru verb) to recommend
Noun 
一から いちから from the beginning; from scratch
Expression 
一ころ いちころ trouncing; beating somebody hands down
Noun 
一時に いちじに at the same time; at a time; at one time; simultaneously
Adverb 
一途に いちずに wholeheartedly; earnestly
Adverb 
一度も いちども never (in sentence with neg. verb)
Adverb 
一死後 いっしご after one out (in Baseball)
Adverbial noun, Temporal noun 
一しょ いっしょ 1: together;
2: at the same time;
3: same; identical
Irregular okurigana usage, Adverbial noun, Noun, No-adjective 
一手に いってに single-handed
Adverb 
一昨日 おとつい day before yesterday
Adverbial noun, Temporal noun 
片一方 かたっぽ one side; one of a pair
Noun 
くの一 くのいち 1: female ninja;
2: (Colloquialism) woman
Irregular kana usage, Noun 
くノ一 くのいち 1: female ninja;
2: (Colloquialism) woman
Noun 
午後一 ごごいち first thing in the afternoon
Noun 
都々一 どどいつ unrhymed non-metrical Japanese popular love song or limerick in the 7-7-7-5 syllable pattern
Noun, Obscure term, Obsolete term, Archaism 
天一神 なかがみ Ten'ichijin; Nakagami; god of fortune in Onmyoudou who descends to the northeast on the 46th day of the sexagenary cycle and completes a clockwise circuit, spending five days on each cardinal point and six days on each ordinal point, returning to heaven from the north on the 30th day of the next sexagenary cycle; travelling in the direction of Ten'ichijin is considered unlucky
Noun 
非一致 ひいっち non-matching
Noun or verb acting prenominally 
一荒れ ひとあれ squall; burst of anger
Noun, Suru verb 
一打ち ひとうち stroke; blow
Noun, Suru verb 
一押し ひとおし push; another try
Noun, Suru verb 
一折り ひとおり one box
Noun 

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