effort vs strain

effort and strain both are nouns.

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

As nouns, strain is a hyponym of effort; that is, strain is a word with a more specific, narrower meaning than effort:

effort: earnest and conscientious activity intended to do or accomplish something
strain: an effortful attempt to attain a goal

As nouns, strain is a hyponym of effort; that is, strain is a word with a more specific, narrower meaning than effort:

effort (noun)	strain (noun)
earnest and conscientious activity intended to do or accomplish something	an effortful attempt to attain a goal
use of physical or mental energy; hard work	the act of singing
a notable achievement	an intense or violent exertion
a series of actions advancing a principle or tending toward a particular end	the general meaning or substance of an utterance
	a succession of notes forming a distinctive sequence
	a special variety of domesticated animals within a species
	(biology) a group of organisms within a species that differ in trivial ways from similar groups
	(physics) deformation of a physical body under the action of applied forces
	injury to a muscle (often caused by overuse); results in swelling and pain
	(psychology) nervousness resulting from mental stress
	difficulty that causes worry or emotional tension

effort (verb)	strain (verb)
	cause to be tense and uneasy or nervous or anxious
	alter the shape of (something) by stress
	to exert much effort or energy
	use to the utmost; exert vigorously or to full capacity
	remove by passing through a filter
	separate by passing through a sieve or other straining device to separate out coarser elements
	become stretched or tense or taut
	rub through a strainer or process in an electric blender
	test the limits of