Jisho

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Noun, Suru verb, Transitive verb
1. waste (of money, time, etc.); squandering; frittering away
Other forms
徒遣い 【むだづかい】無駄使い 【むだづかい】
Notes
徒遣い: Rarely-used kanji form. 無駄使い: Irregular kanji usage.

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