triennial

Occurring every three years; lasting for three years.

• 🌐يحدث كل ثلاث سنوات، أو يستمر ثلاث سنوات.

1. Occurring every three years C1 formal

   Happening once every three years.

   • The triennial conference attracts experts from around the world.
   • The company holds a triennial review of its policies.
   • The triennial festival is a major cultural event in the region.

   🌐ثلاثي السنوات

2. Lasting for three years C1 formal

   Continuing or valid for a period of three years.

   • The triennial contract was renewed after its expiration.
   • The plant has a triennial life cycle.
   • The triennial membership fee covers three years of access.

   🌐ممتد لثلاث سنوات

• more triennial comparative form
• most triennial superlative form

A noun referring to the 300th anniversary or the celebration of that event.

• 🌐اسم يشير إلى ذكرى مرور ثلاثمائة عام أو الاحتفال بمرور ثلاثمائة سنة على حدث ما.

1. Three-hundredth anniversary C2 formal

   The 300th anniversary of an event, or the celebration of that anniversary.

   • The city is preparing for its triennial celebration next year.
   • The university marked its triennial with a grand ceremony.
   • A special coin was minted for the triennial of the founding.

   🌐الذكرى الثلاثمائة

   المرادفات: tercentenarytercentennialtricentennial

• triennials plural form
• triennials' possessive plural form
• triennial's possessive singular form