- 早い【はやい】 - fast, quick, rapid, swift, speedy, brisk, prompt, early, soon, earlier than usual, premature, too soon, too early, easy, simple, quick, fast, as soon as ..., the moment ..., the instant ... 
- 早速【さっそく】 - at once, immediately, without delay, promptly 
- 素早い【すばやい】 - quick, swift, nimble, agile, quick (understanding, judgement, etc.), alert, prompt 
- 早乙女【さおとめ】 - young female rice planter, young girl 
- 早苗【さなえ】 - rice seedling 
- 早朝【そうちょう】 - early morning 
- 早まる【はやまる】 - to be brought forward (e.g. by three hours), to be moved up, to be advanced, to be hasty, to be rash, to quicken, to speed up, to gather speed 
- 早めに【はやめに】 - a little early, earlier than usual, ahead of time, in good time, rather quickly, a little faster than usual 
- 早期【そうき】 - early stage 
- 早起き【はやおき】 - early rising 
- 早める【はやめる】 - to bring forward (e.g. by 3 hours), to advance, to hasten (e.g. one's death), to expedite, to precipitate, to quicken (e.g. one's step), to speed up, to accelerate 
- 早々【はやばや】 - early, quickly, promptly 
- 早口【はやくち】 - fast-talking, rapid talking 
- 早春【そうしゅん】 - early spring 
- 早々【そうそう】 - as soon as..., just after..., immediately after..., hurriedly, in haste, quickly, promptly, early 
- 早退【そうたい】 - leaving early 
- 早熟【そうじゅく】 - precocity, early ripening, premature development 
- 早寝【はやね】 - go to bed early 
- 早急【そうきゅう】 - immediate, prompt, quick, rapid, urgent, pressing 
- 一刻も早く【いっこくもはやく】 - immediately, as soon as possible, as quickly as possible