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"
the presiding officer of a deliberative assembly; "the leader of the majority party is the Speaker of the House of Representatives"
a political organization within the Democratic Party in New York City (late 1800's and early 1900's) seeking political control by corruption and bossism