speaker (speakers plural )
1 n-count A speaker at a meeting, conference, or other gathering is a person who is making a speech or giving a talk.
Among the speakers at the gathering was Treasury Secretary Nicholas Brady...
2 n-count A speaker of a particular language is a person who speaks it, especially one who speaks it as their first language.
...in the Ukraine, where a fifth of the population are Russian speakers...
3 n-proper; n-voc In the parliament or legislature of many countries, the Speaker is the person who is in charge of meetings.
...the Speaker of the Polish Parliament...
4 n-count A speaker is a person who is speaking.
From a simple gesture or the speaker's tone of voice, the Japanese listener gleans the whole meaning.
5 n-count A speaker is a piece of electrical equipment, for example part of a radio or set of equipment for playing CDs or tapes, through which sound comes out.
(=loudspeaker)
For a good stereo effect, the speakers should not be too wide apart.