Hot answers tagged homophonic-kanji
The other answers address the differences between the kanji choices. I would like to point out that this information for disambiguation is contained in any good monolingual dictionary, e.g. 大辞林, which is freely accessible via https://kotobank.jp/. 大辞林 has two entries for あう, because there are two main meanings, which in English one could describe as "to ...
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