wren-tit vs tit

wren-tit and tit both are nouns.

Word	Noun	Adjective	Verb	Adverb
wren-tit	Yes	No	No	No
tit	Yes	No	No	No

As nouns, tit is a hypernym of wren-tit; that is, tit is a word with a broader meaning than wren-tit:

Other hypernyms of wren-tit include titmouse.

wren-tit (noun)	tit (noun)
small brown bird of California resembling a wren	small insectivorous birds
	either of two soft fleshy milk-secreting glandular organs on the chest of a woman
	the small projection of a mammary gland