trick vs duty period

trick and duty period both are nouns.

Word	Noun	Adjective	Verb	Adverb
trick	Yes	No	Yes	No
duty period	Yes	No	No	No

As nouns, duty period is a hypernym of trick; that is, duty period is a word with a broader meaning than trick:

Other hypernyms of trick include shift, work shift.

trick (noun)	duty period (noun)
a ludicrous or grotesque act done for fun and amusement	the time period during which you are at work
(card games) in a single round, the sequence of cards played by all the players; the high card is the winner
an illusory feat; considered magical by naive observers
an attempt to get you to do something foolish or imprudent
a cunning or deceitful action or device
a prostitute's customer
a period of work or duty

trick (verb)	duty period (verb)
deceive somebody