cutpurse vs thief

cutpurse and thief both are nouns.

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

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

cutpurse: a thief who steals from the pockets or purses of others in public places
thief: a criminal who takes property belonging to someone else with the intention of keeping it or selling it

Other hypernyms of cutpurse include stealer.

cutpurse (noun)	thief (noun)
a thief who steals from the pockets or purses of others in public places	a criminal who takes property belonging to someone else with the intention of keeping it or selling it