base; basis / base (physical bottom) / (linear algebra) basis

Short for カラーコンタクトレンズ (karā kontakuto renzu, “coloured contact lens”).

boys' high collar school uniform

Kyūjitai form of 区立 (“established by the ward”)

established by the ward

bark (of a tree) / the outer surface of a log after debarking / red pine, cedar, or similar wood that has been debarked, and then hammered into a fibrous consistency: wood wool, excelsior

wit, tact

(idiomatic) Alternative form of 気が気でない

(idiomatic) Alternative form of 気が気でない

(idiomatic) very anxious, very worried, feeling uneasy; can't help but be worried