uterus vs womb

uterus and womb both are nouns.

Word	Noun	Adjective	Verb	Adverb
uterus	Yes	No	No	No
womb	Yes	No	No	No

As nouns, uterus and womb are synonyms defined as:

uterus and womb: a hollow muscular organ in the pelvic cavity of females; contains the developing fetus

uterus (noun)	womb (noun)
a hollow muscular organ in the pelvic cavity of females; contains the developing fetus	a hollow muscular organ in the pelvic cavity of females; contains the developing fetus