The kanji 務 primarily conveys the idea of "duty," "task," "service," or "to be engaged in." It implies a responsibility or obligation to perform a certain action or fulfill a particular role. It suggests a commitment to something, whether it be a job, a role, or an endeavor. It can also imply diligence and effort in carrying out that duty or task.

・On-yomi (音読み): ム ・Kun-yomi (訓読み): つと（める）, つと（め）

⚫︎ 事務（じむ） Translation: Office work; clerical work; business ⚫︎ 義務（ぎむ） Translation: Duty; obligation; responsibility ⚫︎ 勤務（きんむ） Translation: Work; service; duty

The kanji 務 is a phono-semantic compound (形声文字). The left part is 坴 (now rare and found within the kanji 勢). The right part 力 means "power". 坴 originally depicts a plough that goes deep into the soil. It is now rarely used on its own, but its usage indicates the meaning of depth and to be in charge of. The meaning of 務 evolved from carrying out tasks deeply, and it then took on the meaning of "duty" or "to be engaged in."