carriage vs baby carriage

carriage and baby carriage both are nouns.

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

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

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

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

carriage (noun)	baby carriage (noun)
a vehicle with wheels drawn by one or more horses	a small vehicle with four wheels in which a baby or child is pushed around
a railcar where passengers ride
a machine part that carries something else
a small vehicle with four wheels in which a baby or child is pushed around
characteristic way of bearing one's body