culminate vs reach

culminate is not a noun while reach is a noun.

Word	Noun	Adjective	Verb	Adverb
culminate	No	No	Yes	No
reach	Yes	No	Yes	No

As verbs, reach is a hypernym of culminate; that is, reach is a word with a broader meaning than culminate:

Other hypernyms of culminate include arrive at, attain, gain, hit, make.

As verbs, reach is a hypernym of culminate; that is, reach is a word with a broader meaning than culminate:

Other hypernyms of culminate include accomplish, achieve, attain.

culminate (noun)	reach (noun)
	the act of physically reaching or thrusting out
	an area in which something acts or operates or has power or control:
	the limit of capability
	the limits within which something can be effective

culminate (verb)	reach (verb)
end, especially to reach a final or climactic stage	be in or establish communication with
rise to, or form, a summit	to exert much effort or energy
bring to a head or to the highest point	move forward or upward in order to touch; also in a metaphorical sense
reach the highest altitude or the meridian, of a celestial body	reach a point in time, or a certain state or level
reach the highest or most decisive point	reach a destination, either real or abstract
	reach a goal
	place into the hands or custody of
	to gain with effort
	to extend as far as