connect vs join

connect is not a noun while join is a noun.

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

As verbs, join is a hypernym of connect; that is, join is a word with a broader meaning than connect:

As verbs, join is a hypernym of connect; that is, join is a word with a broader meaning than connect:

As verbs, join is a hyponym of connect; that is, join is a word with a more specific, narrower meaning than connect:

As verbs, connect and join are synonyms defined as:

Other synonyms of connect include link, link up, unite.

connect (noun)	join (noun)
	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

connect (verb)	join (verb)
make a logical or causal connection	make contact or come together
join for the purpose of communication	cause to become joined or linked
join by means of communication equipment	become part of; become a member of a group or organization
connect, fasten, or put together two or more pieces	come into the company of
land on or hit solidly	be or become joined or united or linked
plug into an outlet
hit or play a ball successfully
establish communication with someone
establish a rapport or relationship
be or become joined or united or linked
be scheduled so as to provide continuing service, as in transportation