series vs issue

series and issue both are nouns.

Word	Noun	Adjective	Verb	Adverb
series	Yes	No	No	No
issue	Yes	No	Yes	No

series (noun)	issue (noun)
(mathematics) the sum of a finite or infinite sequence of expressions	the act of issuing printed materials
a periodical that appears at scheduled times	the act of providing an item for general use or for official purposes (usually in quantity)
a serialized set of programs	an opening that permits escape or release
(sports) several contests played successively by the same teams	some situation or event that is thought about
similar things placed in order or happening one after another	an important question that is in dispute and must be settled
a group of postage stamps having a common theme or a group of coins or currency selected as a group for study or collection	one of a series published periodically
(electronics) connection of components in such a manner that current flows first through one and then through the other	the becoming visible
	the immediate descendants of a person
	a phenomenon that follows and is caused by some previous phenomenon
	the income or profit arising from such transactions as the sale of land or other property
	supplies (as food or clothing or ammunition) issued by the government

series (verb)	issue (verb)
	come out of
	prepare and issue for public distribution or sale
	bring out an official document (such as a warrant)
	make out and issue
	circulate or distribute or equip with