Synonyms for on duty

Synonyms for on

of (along, against, in >>)
upon (for, to, by >>)
regarding
towards
about
up
forth

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Synonyms for duty

obligation (responsibility, commitment, burden >>)
charge (tariff, due, fee >>)
task (job, office, assignment >>)
levy (impost, tax, toll >>)
collection
tour of duty

See all synonyms for duty