1. A general tendency or course of events: a warming trend. See Synonyms at tendency.
2. Current style; vogue: the latest trend in fashion.
3. The general direction of something: the river's southern trend.
intr.v. trend·ed, trend·ing, trends
1. To show a general tendency; tend: The magazine's circulation is trending downward.
2. To undergo a rapid increase in public interest or attention: News of the earthquake is trending on social media.
3. To extend, incline, or veer in a specified direction: The prevailing wind trends northeast.
[From Middle English trenden, to revolve, from Old English trendan.]
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.