tails vs white tie and tails

tails and white tie and tails both are nouns.

Word	Noun	Adjective	Verb	Adverb
tails	Yes	No	No	No
white tie and tails	Yes	No	No	No

As nouns, tails and white tie and tails are synonyms defined as:

tails and white tie and tails: formalwear consisting of full evening dress for men

Other synonyms of tails include dress suit, full dress, tail coat, tailcoat, white tie.

tails (noun)	white tie and tails (noun)
formalwear consisting of full evening dress for men	formalwear consisting of full evening dress for men