triennial

Meanings

• the 300th anniversary (or the celebration of it)
• occurring every third year or lasting 3 years

Synonyms

• tercentennial
• tercentenary

Scrabble Score: 9

triennial is a valid Scrabble (US) TWL word

triennial is a valid Scrabble Word in Merriam-Webster MW Dictionary

triennial is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 12

triennial is a valid Words With Friends word

Angrams of triennial