HyperDic: guard_duty

English > 1 sense of the expression *guard duty*:
NOUN	act	guard duty, guard, sentry duty, sentry go	the duty of serving as a sentry

English > *guard duty*: 1 sense > noun 1, act
Meaning	The duty of serving as a sentry.
Synonyms	guard, sentry duty, sentry go
Broader	assignment, duty assignment	A duty that you are assigned to perform (especially in the armed forces)