rabbet vs join

rabbet and join both are nouns.

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

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

rabbet (noun)	join (noun)
a rectangular groove made to hold two pieces together	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

rabbet (verb)	join (verb)
cut a rectangular groove into	make contact or come together
join with a rabbet joint	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