adverb, noun
in one go; at a stroke; in a single effort
Used when something is accomplished all at once, without multiple steps. Often appears in the phrase 一挙に.
彼は一挙に問題を解決した。
He solved the problem in one go.
新政策で状況が一挙に変わった。
The situation changed at a stroke with the new policy.
一気 emphasizes doing something in a single breath or without pause, often for drinking or continuous action, while 一挙 focuses on accomplishing something in one decisive effort.
一度 simply means 'once' or 'one time', whereas 一挙 implies a concentrated, sweeping action that resolves or changes things.
Compound of 一 (one) and 挙 (raise, action). The meaning 'in one effort' derives from the idea of raising or undertaking something in a single move.