pusher vs pushchair

pusher and pushchair both are nouns.

Word	Noun	Adjective	Verb	Adverb
pusher	Yes	No	No	No
pushchair	Yes	No	No	No

As nouns, pusher and pushchair are synonyms defined as:

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

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

pusher (noun)	pushchair (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
a sandal attached to the foot by a thong over the toes
someone who pushes
an unlicensed dealer in illegal drugs
one who intrudes or pushes himself forward