throttle vs throttler

throttle and throttler both are nouns.

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

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

throttle (verb)	throttler (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