achieve vs culminate

achieve and culminate both are verbs.

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

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

Other hyponyms of achieve include score, get to, make, progress to, reach, begin, come to, strike, compass, average, finagle, manage, wangle.

achieve (verb)	culminate (verb)
to gain with effort	end, especially to reach a final or climactic stage
	rise to, or form, a summit
	bring to a head or to the highest point
	reach the highest altitude or the meridian, of a celestial body
	reach the highest or most decisive point