waiter vs lurcher

waiter and lurcher both are nouns.

Word	Noun	Adjective	Verb	Adverb
waiter	Yes	No	No	No
lurcher	Yes	No	No	No

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

Other hyponyms of waiter include lurker, skulker.

waiter (noun)	lurcher (noun)
a person whose occupation is to serve at table (as in a restaurant)	someone waiting in concealment
a person who waits or awaits