twang (tw?ng)v. twanged, twang·ing, twangs v.intr.1. To emit a sharp, vibrating sound, as the string of a musical instrument does when it is plucked.2. To resound with a sharp, vibrating sound.3. To speak in a strongly nasal tone of voice.v.tr.1. To cause to make a sharp, vibrating sound: twanged the car antenna.2. To utter with a strongly nasal tone of voice.n.1. A sharp, vibrating sound, as that of a plucked string.2. A strongly nasal tone of voice, especially as a peculiarity of certain regional dialects.[Imitative.]twang?y adj.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.