be sb's department
informalto be a particular person's area of responsibility:
Wasn't buying the tickets your department, Dan?
Thesaurus: synonyms and related words
Duty, obligation and responsibility
- accountable
- answer for sb/sth
- answer for sth
- answer to sb
- answerable
- brother
- commitment
- fail
- I am not my brother's keeper idiom
- in the hot seat idiom
- incharge
- it's your own lookout idiom
- job
- portfolio
- responsible
- risk
- saddle sb with sth
- social contract
- stick
- stick sb with sth
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