effort vs toil

effort and toil both are nouns.

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

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

Other hypernyms of effort include labor, labour.

effort (noun)	toil (noun)
earnest and conscientious activity intended to do or accomplish something	productive work (especially physical work done for wages)
use of physical or mental energy; hard work
a notable achievement
a series of actions advancing a principle or tending toward a particular end

effort (verb)	toil (verb)
	work hard