trilateral

adjective

tri·​lat·​er·​al (ˌ)trī-ˈla-tə-rəl 

-ˈla-trəl

: having three sides or parties

trilateral business ventures

trilateral discussions

Examples of trilateral in a Sentence

Recent Examples on the Web

Several European leaders will participate in a meeting between Trump and Zelensky this week, which will precede a possible trilateral meeting between Trump, Zelensky, and Putin. —Peter Aitken, MSNBC Newsweek, 17 Aug. 2025

Ukrainian President Volodymyr Zelensky and European leaders hope Trump can arrange a ceasefire agreement that Russia will honor while a trilateral meeting can be organized for peace negotiations. —Jade Walker, CNN Money, 15 Aug. 2025

According to President Trump, talks could expand to a trilateral format involving all three presidents or bilateral discussions between Putin and Zelensky, following the summit. —Katya Soldak, Forbes.com, 12 Aug. 2025

Ushakov said Witkoff raised the possibility of a trilateral meeting between Putin, Trump and Ukraine President Volodymyr Zelensky, but the Kremlin said the summit would just be between Trump and Putin. —Filip Timotija, The Hill, 7 Aug. 2025

Word History

Etymology

Latin trilaterus, from tri- + later-, latus side

First Known Use

1660, in the meaning defined above

Rhymes for trilateral

• bilateral
• collateral
• anterolateral
• posterolateral
• basolateral
• contralateral
• dorsolateral
• equilateral
• ipsilateral
• multilateral
• quadrilateral
• unilateral

Kids Definition

trilateral

adjective

tri·​lat·​er·​al (ˈ)trī-ˈlat-ə-rəl 

-ˈla-trəl

: having three sides