Speaker

n.	1.	One who speaks.
	2.	A book of selections for declamation.

Noun	1.	speaker - someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous); "the speaker at commencement"; "an utterer of useful maxims" Synonyms: talker, verbaliser, verbalizer, utterer
	2.	speaker - electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance Synonyms: loudspeaker, loudspeaker system, speaker system, speaker unit
	3.	Speaker - the presiding officer of a deliberative assembly; "the leader of the majority party is the Speaker of the House of Representatives"

SPEAKER. The presiding officer of the house of representatives of the United States is so called. The presiding officer of either branch of the state legislatures generally bears this name.

1.	(hardware)	speaker - loudspeaker.
2.		speaker - The person who is (assumed to be) talking.

acoustical network, capacitor speaker, chair, chairman, chatterbox, coaxial speaker, cone, convener, conversationalist, crossover network, debater, declaimer, demagogue, diaphragm, dynamic speaker, earphone, electrodynamic speaker, electromagnetic speaker, electrostatic speaker, excited-field speaker, full-fidelity speaker, haranguer, headphone, headset, herald, high-fidelity speaker, high-frequency speaker, horn, jawsmith, keynoter, lecturer, loudspeaker, low-frequency speaker, midrange speaker, monorange speaker, mouth, mouthpiece, moving-coil speaker, official spokesman, orator, panelist, patterer, permanent magnet speaker, presiding officer, prolocutor, prolocutress, prolocutrix, public speaker, rabble-rouser, ranter, rapporteur, reporter, sayer, speaker system, speaker unit, speecher, speechifier, speechmaker, spieler, spokesman, spokesperson, spokeswoman, spouter, talker, triaxial speaker, tub-thumper, tweeter, utterer, voice, voice coil, woofer