larceny vs theft

larceny and theft both are nouns.

Word	Noun	Adjective	Verb	Adverb
larceny	Yes	No	No	No
theft	Yes	No	No	No

As nouns, larceny and theft are synonyms defined as:

Other synonyms of larceny include stealing, thievery, thieving.

larceny (noun)	theft (noun)
the act of taking something from someone unlawfully	the act of taking something from someone unlawfully