zed vs Z

zed and Z both are nouns.

Word	Noun	Adjective	Verb	Adverb
zed	Yes	No	No	No
Z	Yes	No	No	No

As nouns, zed and Z are synonyms defined as:

Other synonyms of zed include ezed, izzard, z, zee.

zed (noun)	Z (noun)
the 26th letter of the Roman alphabet	the 26th letter of the Roman alphabet
	the ending of a series or sequence