duty period

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the time period during which you are at work
• Syn:
shift, work shift
• Hypernyms:
hours
• Hyponyms:
go, spell, tour, turn, trick,
trick, day shift, evening shift, swing shift, night shift,
graveyard shift, split shift
• Part Holonyms:
workday, working day