slider vs doer

slider and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
slider	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of slider; that is, doer is a word with a broader meaning than slider:

Other hypernyms of slider include actor, worker.

slider (noun)	doer (noun)
a fastball that curves slightly away from the side from which it was thrown	a person who acts and gets things done
freshwater turtle of United States and South America; frequently raised commercially; some young sold as pets
someone who races the luge
a person who slips or slides because of loss of traction