foot vs footer

foot and footer both are nouns.

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

foot (noun)	footer (noun)
travel by walking	a printed note placed below the text on a printed page
any of various organs of locomotion or attachment in invertebrates	a person who travels by foot
the pedal extremity of vertebrates other than human beings	(used only in combinations) the height or length of something in feet
lowest support of a structure
a support resembling a pedal extremity
the part of the leg of a human being below the ankle joint
(prosody) a group of 2 or 3 syllables forming the basic unit of poetic rhythm
an army unit consisting of soldiers who fight on foot
the lower part of anything
a member of a surveillance team who works on foot or rides as a passenger
a linear unit of length equal to 12 inches or a third of a yard