vertebrate vs costa

vertebrate and costa both are nouns.

Word	Noun	Adjective	Verb	Adverb
vertebrate	Yes	Yes	No	No
costa	Yes	No	No	No

vertebrate (noun)	costa (noun)
animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium	any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates)
	a riblike part of a plant or animal (such as a middle rib of a leaf or a thickened vein of an insect wing)

vertebrate (adjective)	costa (adjective)
having a backbone or spinal column