事前に beforehand; in advance
- そういうことは事前に言ってくれなくちゃ困る
- You should have notified us of that beforehand [ahead of time].
- 事前運動〔選挙の〕preelection campaigning
- 事前運動をする
- lay the groundwork for an election campaign
- 事前協議prior consultation
- 事前調査a feasibility study
- 事前通告(an) advance notice
- 事前投票a preliminary election