white tie and tails vs white tie

white tie and tails and white tie both are nouns.

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

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

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

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

white tie and tails (noun)	white tie (noun)
formalwear consisting of full evening dress for men	bow tie worn as part of a man's formal evening dress
	formalwear consisting of full evening dress for men