octennial is a valid English word

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

Meanings

Adjective (NOT COMPARABLE)

Occurring every eight years.
Lasting or taking eight years.

octennial is a Scrabble valid word

o1c3t1e1n1n1i1a1l1

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

octennial is an iScramble, QuickWords valid word

o1c2t3e4n5n6i7a8l9

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

Same letters words (Anagrams)

• ELCATONIN

Same letters plus one

• CENTONICAL
• CHELTONIAN
• CONGENITAL
• INNOCULATE
• INTERCONAL
• LENOCINANT
• LENOCINATE
• NONALETHIC
• NONCILIATE
• NONDELTAIC
• NONDIALECT
• NONELASTIC
• NONETHICAL
• NONLATTICE
• NONRECITAL
• NONTACTILE
• NUCLEATION
• OCFENTANIL

Same letters minus one

• ACTINEON
• CANTLINE
• CONTLINE
• ENACTION
• LACTENIN
• NOETICAL
• NOLANITE
• NONTELIC
• OCTENNIA
• TAILCONE