This is the 1540th most frequent Japanese word.
一応
"一応" means "for the time being," "tentatively," or "just in case," often implying something is done adequately but not thoroughly.
In this case, "一応" implies taking action or a step as a precaution even if it may not be necessary.
必要だったら、一応このファイルをコピーしておいた方がいいよ。
If necessary, it would be a good idea to make a copy of this file just in case.
Here, "一応" conveys that an action has been done generally or initially, though it may require further or more thorough effort.
一応確認しましたが、もう一度詳しくチェックしてもらえますか?
I checked it for now, but could you please check it in detail again?
Here, "一応" is used to indicate that the speaker has a basic or sufficient ability to do something, even if not at an advanced level.