guard duty

Definitions of guard duty
1

n the duty of serving as a sentry

Synonyms:
guard, sentry duty, sentry go
Type of:
assignment, duty assignment
a duty that you are assigned to perform (especially in the armed forces)

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.