microphone vs mic

microphone and mic both are nouns.

Word	Noun	Adjective	Verb	Adverb
microphone	Yes	No	No	No
mic	Yes	No	No	No

As nouns, microphone and mic are synonyms defined as:

microphone and mic: device for converting sound waves into electrical energy

Other synonyms of microphone include mike.

microphone (noun)	mic (noun)
device for converting sound waves into electrical energy	device for converting sound waves into electrical energy