mic vs microphone

mic and microphone both are nouns.

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

As nouns, mic and microphone are synonyms defined as:

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

Other synonyms of mic include mike.

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