language vs well-turned

language is a noun but well-turned is not a noun.

Word	Noun	Adjective	Verb	Adverb
language	Yes	No	No	No
well-turned	No	Yes	No	No

language (noun)	well-turned (noun)
the mental faculty or power of vocal communication
the cognitive processes involved in producing and understanding linguistic communication
a systematic means of communicating by the use of sounds or conventional symbols
(language) communication by word of mouth
the text of a popular song or musical-comedy number
a system of words used to name things in a particular discipline

language (adjective)	well-turned (adjective)
	(of language) aptly and pleasingly expressed
	of a pleasing shape