succeeder vs highflier

succeeder and highflier both are nouns.

Word	Noun	Adjective	Verb	Adverb
succeeder	Yes	No	No	No
highflier	Yes	No	No	No

As nouns, highflier is a hyponym of succeeder; that is, highflier is a word with a more specific, narrower meaning than succeeder:

Other hyponyms of succeeder include first lady, great, highflyer, natural, sleeper.

succeeder (noun)	highflier (noun)
a person with a record of successes	a person of great ability and ambition