footer vs walker

footer and walker both are nouns.

Word	Noun	Adjective	Verb	Adverb
footer	Yes	No	No	No
walker	Yes	No	No	No

As nouns, footer and walker are synonyms defined as:

Other synonyms of footer include pedestrian.

footer (noun)	walker (noun)
a printed note placed below the text on a printed page	an enclosing framework on casters or wheels; helps babies learn to walk
a person who travels by foot	a light enclosing framework (trade name Zimmer) with rubber castors or wheels and handles; helps invalids or the handicapped or the aged to walk
(used only in combinations) the height or length of something in feet	a shoe designed for comfortable walking
	a person who travels by foot