dub vs nickname

dub and nickname both are nouns.

Word	Noun	Adjective	Verb	Adverb
dub	Yes	No	Yes	No
nickname	Yes	No	Yes	No

As verbs, dub and nickname are synonyms defined as:

dub (noun)	nickname (noun)
the new sounds added by dubbing	a familiar name for a person (often a shortened version of a person's given name)
	a descriptive name for a place or thing

dub (verb)	nickname (verb)
give a nickname to	give a nickname to
provide (movies) with a soundtrack of a foreign language
raise (someone) to knighthood