semiannual is a valid English word

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

Meanings

Adjective (NOT COMPARABLE)

Biannual: occurring twice a year

Noun (COUNTABLE)

Something occurring twice each year.

semiannual is a Scrabble valid word

s1e1m3i1a1n1n1u1a1l1

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

semiannual is an iScramble, QuickWords valid word

s1e2m3i4a5n6n7u8a9l10

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

Same letters words (Anagrams)

• none

Same letters plus one

• SEMIANNUALS
• SEMIANNULAR

Same letters minus one

• ANNUALISE
• ANSELMIAN
• MAESULIAN
• MAINLANES
• MANUALISE
• MELANIANS
• MISANNEAL
• MULINANES
• SAMUELINA