pram vs baby carriage

pram and baby carriage both are nouns.

Word	Noun	Adjective	Verb	Adverb
pram	Yes	No	No	No
baby carriage	Yes	No	No	No

As nouns, pram and baby carriage are synonyms defined as:

pram and baby carriage: a small vehicle with four wheels in which a baby or child is pushed around

Other synonyms of pram include baby buggy, carriage, go-cart, perambulator, pushchair, pusher, stroller.

pram (noun)	baby carriage (noun)
a small vehicle with four wheels in which a baby or child is pushed around	a small vehicle with four wheels in which a baby or child is pushed around