dacoit vs thief

dacoit and thief both are nouns.

Word	Noun	Adjective	Verb	Adverb
dacoit	Yes	No	No	No
thief	Yes	No	No	No

As nouns, thief is a hypernym of dacoit; that is, thief is a word with a broader meaning than dacoit:

dacoit: a member of an armed gang of robbers
thief: a criminal who takes property belonging to someone else with the intention of keeping it or selling it

Other hypernyms of dacoit include stealer.

dacoit (noun)	thief (noun)
a member of an armed gang of robbers	a criminal who takes property belonging to someone else with the intention of keeping it or selling it