deathwatch beetle vs deathwatch

deathwatch beetle and deathwatch both are nouns.

Word	Noun	Adjective	Verb	Adverb
deathwatch beetle	Yes	No	No	No
deathwatch	Yes	No	No	No

As nouns, deathwatch beetle and deathwatch are synonyms defined as:

deathwatch beetle and deathwatch: bores through wood making a ticking sound popularly thought to presage death

Other synonyms of deathwatch beetle include Xestobium rufovillosum.

deathwatch beetle (noun)	deathwatch (noun)
bores through wood making a ticking sound popularly thought to presage death	bores through wood making a ticking sound popularly thought to presage death
	minute wingless psocopterous insects injurious to books and papers