1. to (an extent), up to, so far as, even

expressions (phrases, clauses, etc.) word usually written using kana alone

2. there is no need to ..., it should hardly be necessary to ...

expressions (phrases, clauses, etc.) word usually written using kana alone

3. even if there is no need to ... (at least ...)

expressions (phrases, clauses, etc.) word usually written using kana alone