titty vs boob

titty and boob both are nouns.

Word	Noun	Adjective	Verb	Adverb
titty	Yes	No	No	No
boob	Yes	No	Yes	No

As nouns, titty and boob are synonyms defined as:

titty and boob: either of two soft fleshy milk-secreting glandular organs on the chest of a woman

Other synonyms of titty include bosom, breast, knocker, tit.

titty (noun)	boob (noun)
either of two soft fleshy milk-secreting glandular organs on the chest of a woman	either of two soft fleshy milk-secreting glandular organs on the chest of a woman
	an ignorant or foolish person

titty (verb)	boob (verb)
	commit a faux pas or a fault or make a serious mistake