rubbing vs effort

rubbing and effort both are nouns.

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

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

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

rubbing (noun)	effort (noun)
effort expended in moving one object over another with pressure	earnest and conscientious activity intended to do or accomplish something
representation consisting of a copy (as of an engraving) made by laying paper over something and rubbing it with charcoal	use of physical or mental energy; hard work
the resistance encountered when one body is moved in contact with another	a notable achievement
	a series of actions advancing a principle or tending toward a particular end