mock polo neck vs mock turtleneck

mock polo neck and mock turtleneck both are nouns.

Word	Noun	Adjective	Verb	Adverb
mock polo neck	Yes	No	No	No
mock turtleneck	Yes	No	No	No

As nouns, mock polo neck and mock turtleneck are synonyms defined as:

mock polo neck and mock turtleneck: A sweater with a short turtleneck collar that does not fold down.

mock polo neck (noun)	mock turtleneck (noun)
A sweater with a short turtleneck collar that does not fold down.	A sweater with a short turtleneck collar that does not fold down.