1. Consisting of three parts or members.
2. Three times as much in size, strength, number, or amount.
3. Music Having three beats to a measure.
1. A number or quantity three times as great as another.
a. Something having three identifiable or prominent parts or members.
b. Something capable of carrying or moving three people or things, as a chairlift.
3. Baseball A hit enabling the batter to reach third base. Also called three-bagger, three-base hit.
4. See trifecta.
v. tri·pled, tri·pling, tri·ples
To make three times as great in number or amount.
1. To be or become three times as great in number or amount.
2. Baseball To make a triple.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.