alligator vs gator

alligator and gator both are nouns.

Word	Noun	Adjective	Verb	Adverb
alligator	Yes	No	Yes	No
gator	Yes	No	No	No

As nouns, alligator and gator are synonyms defined as:

alligator and gator: either of two amphibious reptiles related to crocodiles but with shorter broader snouts

alligator (noun)	gator (noun)
either of two amphibious reptiles related to crocodiles but with shorter broader snouts	either of two amphibious reptiles related to crocodiles but with shorter broader snouts
leather made from alligator's hide

alligator (verb)	gator (verb)
crack and acquire the appearance of alligator hide, as from weathering or improper application; of paint and varnishes