throttler vs choker

throttler and choker both are nouns.

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

As nouns, throttler and choker are synonyms defined as:

Other synonyms of throttler include garroter, garrotter, strangler.

throttler (noun)	choker (noun)
someone who kills by strangling	a high tight collar
	necklace that fits tightly around a woman's neck
	someone who kills by strangling
	an unfortunate person who is unable to perform effectively because of nervous tension or agitation