workout vs effort

workout and effort both are nouns.

Word	Noun	Adjective	Verb	Adverb
workout	Yes	No	No	No
effort	Yes	No	No	No

As nouns, effort is a hypernym of workout; that is, effort is a word with a broader meaning than workout:

Other hypernyms of workout include elbow grease, exertion, sweat, travail.

workout (noun)	effort (noun)
the activity of exerting your muscles in various ways to keep fit	earnest and conscientious activity intended to do or accomplish something
	use of physical or mental energy; hard work
	a notable achievement
	a series of actions advancing a principle or tending toward a particular end