umb is a valid English word

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

Meanings

Noun

    (dated computing) Initialism of: upper memory block.

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umb is not a Scrabble valid word

u1m3b3


umb is not an iScramble, QuickWords valid word

u1m2b3


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Same letters words (Anagrams)


Same letters plus one


Same letters minus one