ejaculator vs speaker

ejaculator and speaker both are nouns.

Word	Noun	Adjective	Verb	Adverb
ejaculator	Yes	No	No	No
speaker	Yes	No	No	No

As nouns, speaker is a hypernym of ejaculator; that is, speaker is a word with a broader meaning than ejaculator:

ejaculator: a speaker who utters a sudden exclamation
speaker: someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)

Other hypernyms of ejaculator include talker, utterer, verbaliser, verbalizer.

ejaculator (noun)	speaker (noun)
a speaker who utters a sudden exclamation	electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance
a man who ejaculates semen	someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)