dullen is a valid English word

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

Meanings

Verb

(transitive nonstandard) To make dull or duller; to dull.
(intransitive nonstandard) To become dull or duller; to dull.

dullen is not a Scrabble valid word

dullen

• International English (Sowpods) - The word is not valid in Scrabble ✘
• US English (TWL06) - The word is not valid in Scrabble ✘
• 00 points

dullen is not an iScramble, QuickWords valid word

dullen

• The word is not valid in iScramble ✘
• The word is not valid in QuickWords ✘
• 00 points

Same letters words (Anagrams)

• NULLED

Same letters plus one

• CUNDELL
• DEVNULL
• DULLENS
• DURNELL
• HUDNELL
• LUNDELL
• MUNDELL
• RUNDELL
• SUNDELL

Same letters minus one

• DULLE
• LENDU
• LUNDE
• LUNEL
• NUDLE
• UDELL
• UNLED