mark out vs throttle

mark out is not a noun while throttle is a noun.

Word	Noun	Adjective	Verb	Adverb
mark out	No	No	Yes	No
throttle	Yes	No	Yes	No

As verbs, throttle is a hypernym of mark out; that is, throttle is a word with a broader meaning than mark out:

Other hypernyms of mark out include bound, confine, limit, restrict, trammel.

mark out (noun)	throttle (noun)
	a valve that regulates the supply of fuel to the engine
	a pedal that controls the throttle valve

mark out (verb)	throttle (verb)
set boundaries to and delimit	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