wryneck vs torticollis

wryneck and torticollis both are nouns.

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

As nouns, wryneck and torticollis are synonyms defined as:

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

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