ascender vs mover

ascender and mover both are nouns.

Word	Noun	Adjective	Verb	Adverb
ascender	Yes	No	No	No
mover	Yes	No	No	No

As nouns, mover is a hypernym of ascender; that is, mover is a word with a broader meaning than ascender:

ascender (noun)	mover (noun)
(printing) the part of tall lowercase letters that extends above the other lowercase letters	a company that moves the possessions of a family or business from one site to another
a lowercase letter that has a part extending above other lowercase letters	someone who moves
someone who ascends	(parliamentary procedure) someone who makes a formal motion
	workman employed by a moving company