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Synonyms

trilateral

American  
[trahy-lat-er-uhl] / traɪˈlæt ər əl /

adjective

  1. having three sides.


trilateral British  
/ traɪˈlætərəl /

adjective

  1. having three sides

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of trilateral

1650–60; < Latin trilater ( us ) three-sided + -al 1. See tri-, lateral

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

But a key question remains on whether parts compliant with the USMCA, the trilateral trade pact, would continue to be exempt from levies, Levy wrote in a note Monday.

From The Wall Street Journal Aug. 26, 2026

In late June, the three countries agreed a trilateral framework that should see the Israeli military gradually withdraw from territory it is occupying in southern Lebanon in exchange for the disarmament of Hezbollah.

From BBC Aug. 5, 2026

Putin has pushed privately for a trilateral summit between Russia, China and North Korea, said people familiar with the matter—a proposal Beijing declined.

From The Wall Street Journal Jul. 14, 2026

This decision means the trilateral trade pact will miss out on an automatic 16-year extension.

From BBC Jul. 1, 2026

Further, of trilateral figures, a right-angled triangle is that which has a right angle, an obtuse-angled triangle that which has an obtuse angle, and an acute-angled triangle that which has its three angles acute.

From The Teaching of Geometry by David Eugene Smith

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