good luck charm vs charm

good luck charm and charm both are nouns.

Word	Noun	Adjective	Verb	Adverb
good luck charm	Yes	No	No	No
charm	Yes	No	Yes	No

As nouns, good luck charm and charm are synonyms defined as:

good luck charm (noun)	charm (noun)
something believed to bring good luck	something believed to bring good luck
	attractiveness that interests or pleases or stimulates
	(physics) one of the six flavors of quark, the third most massive of all quarks
	a verbal formula believed to have magical force

good luck charm (verb)	charm (verb)
	induce into action by using one's charm
	protect through supernatural powers or charms
	attract; cause to be enamored
	control by magic spells, as by practicing witchcraft