1.Definition: electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance

Related Noun(s):loudspeaker

Category: Objects

2.Definition: 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"

Related Noun(s):talker, utterer, verbaliser, verbalizer

Category: People

3.Definition: the presiding officer of a deliberative assembly

"The leader of the majority party is the Speaker of the House of Representatives"

Category: People