walker vs baby-walker

walker and baby-walker both are nouns.

Word	Noun	Adjective	Verb	Adverb
walker	Yes	No	No	No
baby-walker	Yes	No	No	No

As nouns, walker and baby-walker are synonyms defined as:

walker and baby-walker: an enclosing framework on casters or wheels; helps babies learn to walk

Other synonyms of walker include go-cart.

walker (noun)	baby-walker (noun)
an enclosing framework on casters or wheels; helps babies learn to walk	an enclosing framework on casters or wheels; helps babies learn to walk
a light enclosing framework (trade name Zimmer) with rubber castors or wheels and handles; helps invalids or the handicapped or the aged to walk
a shoe designed for comfortable walking
a person who travels by foot