triennial is a valid English word

Scrabble validity: valid ( international - Sowpods, US - Twl06 )
iScramble validity: valid
QuickWords validity: valid

Meanings

Adjective (NOT COMPARABLE)

Happening every three years.
• triennial elections
Lasting for three years.
• triennial parliaments; a triennial reign

Noun (COUNTABLE)

A third anniversary.
A plant that requires three years to complete its life-cycle.

triennial is a Scrabble valid word

triennial

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is valid in Scrabble ✔
• 00 points

triennial is an iScramble, QuickWords valid word

triennial

• The word is valid in iScramble ✔
• The word is valid in QuickWords ✔
• 00 points

Same letters words (Anagrams)

• INTERLAIN

Same letters plus one

• ANTILINEAR
• CALRETININ
• ENCRINITAL
• ENTRAILING
• INTERNALIN
• INTERNIDAL
• LARENTIINE
• NITRACLINE
• PANTILINER
• TRICENNIAL
• TRIENNIALS

Same letters minus one

• INERTIAL
• INTERNAL
• LAITINEN
• LINARITE
• TRIENNIA