bench clamp vs clamp

bench clamp and clamp both are nouns.

Word	Noun	Adjective	Verb	Adverb
bench clamp	Yes	No	No	No
clamp	Yes	No	Yes	No

As nouns, clamp is a hypernym of bench clamp; that is, clamp is a word with a broader meaning than bench clamp:

bench clamp: a clamp used to hold work in place on a workbench
clamp: a device (generally used by carpenters) that holds things firmly together

Other hypernyms of bench clamp include clinch.

bench clamp (noun)	clamp (noun)
a clamp used to hold work in place on a workbench	a device (generally used by carpenters) that holds things firmly together

bench clamp (verb)	clamp (verb)
	impose or inflict forcefully
	fasten or fix with a clamp