d.j. vs disk jockey

d.j. and disk jockey both are nouns.

Word	Noun	Adjective	Verb	Adverb
d.j.	Yes	No	No	No
disk jockey	Yes	No	No	No

As nouns, d.j. and disk jockey are synonyms defined as:

d.j. and disk jockey: a person who announces and plays popular recorded music

Other synonyms of d.j. include disc jockey, DJ.

d.j. (noun)	disk jockey (noun)
a person who announces and plays popular recorded music	a person who announces and plays popular recorded music