throttler vs throttle

throttler and throttle both are nouns.

Word	Noun	Adjective	Verb	Adverb
throttler	Yes	No	No	No
throttle	Yes	No	Yes	No

throttler (noun)	throttle (noun)
someone who kills by strangling	a valve that regulates the supply of fuel to the engine
	a pedal that controls the throttle valve

throttler (verb)	throttle (verb)
	reduce the air supply
	place limits on (extent or amount or access)
	kill by squeezing the throat of so as to cut off the air