creep vs creeper

creep and creeper both are nouns.

Word	Noun	Adjective	Verb	Adverb
creep	Yes	No	Yes	No
creeper	Yes	No	No	No

creep (noun)	creeper (noun)
a slow mode of locomotion on hands and knees or dragging the body	any of various small insectivorous birds of the Northern Hemisphere that climb up a tree trunk supporting themselves on stiff tail feathers and their feet
a pen that is fenced so that young animals can enter but adults cannot	a person who crawls or creeps along the ground
a slow longitudinal movement or deformation	any plant (as ivy or periwinkle) that grows by creeping
someone unpleasantly strange or eccentric

creep (verb)	creeper (verb)
move slowly; in the case of people or animals with the body near the ground
to go stealthily or furtively
grow or spread, often in such a way as to cover (a surface)
show submission or fear