mob vs lynch mob

mob and lynch mob both are nouns.

Word	Noun	Adjective	Verb	Adverb
mob	Yes	No	Yes	No
lynch mob	Yes	No	No	No

As nouns, lynch mob is a hyponym of mob; that is, lynch mob is a word with a more specific, narrower meaning than mob:

mob: a disorderly crowd of people
lynch mob: a mob that kills a person for some presumed offense without legal authority

mob (noun)	lynch mob (noun)
a disorderly crowd of people	a mob that kills a person for some presumed offense without legal authority
an association of criminals
a loose affiliation of gangsters in charge of organized criminal activities

mob (verb)	lynch mob (verb)
press tightly together or cram