torticollis vs wryneck

torticollis and wryneck both are nouns.

Word	Noun	Adjective	Verb	Adverb
torticollis	Yes	No	No	No
wryneck	Yes	No	No	No

As nouns, torticollis and wryneck are synonyms defined as:

torticollis and wryneck: an unnatural condition in which the head leans to one side because the neck muscles on that side are contracted

torticollis (noun)	wryneck (noun)
an unnatural condition in which the head leans to one side because the neck muscles on that side are contracted	Old World woodpecker with a peculiar habit of twisting the neck
	an unnatural condition in which the head leans to one side because the neck muscles on that side are contracted