bed bug vs chinch

bed bug and chinch both are nouns.

Word	Noun	Adjective	Verb	Adverb
bed bug	Yes	No	No	No
chinch	Yes	No	No	No

As nouns, bed bug and chinch are synonyms defined as:

bed bug and chinch: bug of temperate regions that infests especially beds and feeds on human blood

Other synonyms of bed bug include bedbug, Cimex lectularius.

bed bug (noun)	chinch (noun)
bug of temperate regions that infests especially beds and feeds on human blood	bug of temperate regions that infests especially beds and feeds on human blood