throttle vs throttling

throttle and throttling both are nouns.

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

throttle (noun)	throttling (noun)
a valve that regulates the supply of fuel to the engine	the act of suffocating (someone) by constricting the windpipe
a pedal that controls the throttle valve

throttle (verb)	throttling (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