(See 腰の強い) firm/flexible and hard to break/persevering (Expressions (phrases, clauses, etc.))

April (adverbial noun (fukushitekimeishi))

April Theses/series of directives issued by Lenin after his return from exile (noun (common) (futsuumeishi))

(noun (common) (futsuumeishi))

(1) April fool

(2) April fool's day

(See 五月病,六月病) euphoria experienced by college students or workplace recruits at the beginning of school or work (noun (common) (futsuumeishi))

setting a bad example to others (Expressions (phrases, clauses, etc.))

(See 取り返しのつかない) cannot be undone/can't be recovered from (Expressions (phrases, clauses, etc.))

(See 取り返しがつかない) cannot be undone/can't be recovered from (Expressions (phrases, clauses, etc.), adjective (keiyoushi))

(See 攣る) to have one's leg cramp (Expressions (phrases, clauses, etc.), Godan verb with `ru' ending)

(Expressions (phrases, clauses, etc.), Godan verb with `ku' ending)

(1) to be traced/to be tracked (by someone)

(2) to have a lover (for a woman)