Learner's definition of SPEAKER
1 [count] : someone who speaks a particular language 2 [count] : someone who talks about something to a group of people
I disagree with the last speaker.
He is an excellent public speaker.
She was invited to be a guest speaker [=to give a speech] at the conference.
3 the Speaker : the person who controls the discussions in a legislature 4 [count] : someone who is speaking
improper grammar used by a writer or speaker
The word “take” often indicates movement away from the speaker, while “bring” indicates movement toward the speaker.
5 [count] : the part of a radio, television, computer, etc., that changes electric signals into sound