1.
language use, choice of words, manner of speaking
The way a person uses words, encompassing vocabulary choice, tone, politeness level, and overall manner of expression. Often discussed in the context of appropriateness and politeness.
Usage
言葉づかい refers to the overall quality and style of someone's language use, not just individual words. It is important in Japanese culture, where appropriate speech levels vary greatly by context. Parents and teachers frequently correct children's 言葉づかい. Also written as 言葉遣い with kanji.