一応 ①
Just in case, Just to be sure
Structure
Explanation
As an adverb, 一応 can express the idea of performing an action (A) as a minimal precaution against a potential negative outcome (B). This specific meaning of 一応 is often translated as 'just in case (A)' or 'just to be sure (A)'.
- 料理は十分作ったつもりだけど、足りなくなるかもしれないから 一応パンも買っておこうか。I think I've made enough food, but we might run out, so maybe we should buy some bread too, just in case.
- ドアの鍵は閉めたと思うけど、心配だから 一応もう一回確かめてきて。I think I locked the door, but I'm worried, so please go check it one more time, just to be sure.
When used in this sense, 一応 implies that although the negative result (B) is unlikely, taking the precautionary step (A) is a sensible choice. This contrasts with another common meaning of 一応, which can be expressed as 'more or less' or 'for now'. In both cases, however, the word indicates that a minimum requirement has been met or that something is provisionally acceptable.
- 山田：「この説明、分かった？」佐藤：「はい、 一応理解できました。」Yamada: 'Did you get that explanation?' Sato: 'Yes, I understood it, more or less.'
- このパソコンは修理が必要ですが、 一応まだ使えます。This computer needs to be repaired, but it's usable for the time being.
Examples
「今は晴れているけど、一応傘を持っていきなさい。」
'It's sunny now, but take an umbrella with you just in case.'
旅行の準備をしている友達：「病気じゃないけど、一応薬を持っていくよ。」
A friend preparing for a trip: 'I'm not sick, but I'll bring some medicine just in case.'
同僚に：「ミーティングは３時だと思うけど、一応スケジュールを確認しておいてください。」
To a colleague: 'I think the meeting is at 3, but please check the schedule just to be sure.'
友達との会話：「あのレストランは人気だから、一応予約しておこうか。」
Conversation with a friend: 'That restaurant is popular, so we should make a reservation just in case.'
「クラウドに保存したけど、一応USBメモリにもコピーを入れておいた。」
'I saved it to the cloud, but I also put a copy on a USB drive just in case.'
料理中の独り言：「作り方は覚えているつもりだけど、一応レシピを見ておこう。」
Muttering to oneself while cooking: 'I think I remember how to make this, but I'll check the recipe just to be sure.'
上司に進捗を報告する：「レポートは一応完成しました。」
Reporting progress to a boss: 'The report is basically finished.'
試験勉強中の友達：「この章はテストに出ないと思うけど、一応復習しておく。」
A friend while studying for a test: 'I don't think this chapter will be on the test, but I'm going to review it just in case.'
閉店まぎわの店で：「すみません、一応お伺いしますが、こちらの在庫はありますか。」
At a store that is about to close: 'Excuse me, I just wanted to ask, do you have this in stock?'
「ナビがあるとは思うけど、一応地図も渡しておくね。」
'I'm sure you have GPS, but I'll give you a map too, just in case.'
自己紹介で：「英語は一応話せます。」
During a self-introduction: 'I can speak English, at least enough to get by.'
海外旅行のアドバイス：「必要ないかもしれないけど、一応パスポートのコピーも持っていくといいよ。」
Advice about traveling abroad: 'You might not need it, but you should bring a copy of your passport just to be on the safe side.'