TRIENNIAL
Here are the details, including the meaning, point value, and more about the Scrabble word TRIENNIAL. Below
triennial is worth 15 points in the game of Scrabble
Definitions for the word, triennial
(a.) Continuing three years; as, triennial parliaments; a triennial reign.
(a.) Happening, coming about, or appearing once in every three years; as, triennial elections; a triennial catalogue; a triennial visitation.
(n.) Something which takes place or appears once in three years.