joining vs join

joining and join both are nouns.

Word	Noun	Adjective	Verb	Adverb
joining	Yes	No	No	No
join	Yes	No	Yes	No

joining (noun)	join (noun)
the act of bringing two things into contact (especially for communication)	a set containing all and only the members of two or more given sets
	the shape or manner in which things come together and a connection is made

joining (verb)	join (verb)
	make contact or come together
	cause to become joined or linked
	become part of; become a member of a group or organization
	come into the company of
	be or become joined or united or linked