sidekick vs pal

sidekick and pal both are nouns.

Word	Noun	Adjective	Verb	Adverb
sidekick	Yes	No	No	No
pal	Yes	No	Yes	No

As nouns, sidekick and pal are synonyms defined as:

sidekick and pal: a close friend who accompanies his buddies in their activities

Other synonyms of sidekick include brother, buddy, chum, crony.

sidekick (noun)	pal (noun)
a close friend who accompanies his buddies in their activities	a close friend who accompanies his buddies in their activities

sidekick (verb)	pal (verb)
	become friends; act friendly towards