succeeder vs highflyer

succeeder and highflyer both are nouns.

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

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

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

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