a. One who speaks.
b. A spokesperson.
2. One who delivers a public speech.
3. often Speaker The presiding officer of a legislative assembly.
4. The person, sometimes the actual writer but often an assumed character, who is imagined as the source of the words or ideas expressed in a poem.
5. A device that converts electric signals to audible sound.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.