lackey vs crawler

lackey and crawler both are nouns.

Word	Noun	Adjective	Verb	Adverb
lackey	Yes	No	No	No
crawler	Yes	No	No	No

As nouns, lackey and crawler are synonyms defined as:

lackey and crawler: a person who tries to please someone in order to gain a personal advantage

Other synonyms of lackey include ass-kisser, sycophant, toady.

lackey (noun)	crawler (noun)
a male servant (especially a footman)	terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers
a person who tries to please someone in order to gain a personal advantage	a person who tries to please someone in order to gain a personal advantage
	a person who crawls or creeps along the ground