supergrade is a valid English word

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

Meanings

Adjective (NOT COMPARABLE)

Of plutonium: containing a very small portion of isotopes other than plutonium-239 (especially plutonium-240) (usually less than perhaps 3%), making the plutonium especially suitable for nuclear weapons

supergrade is not a Scrabble valid word

s1u1p3e1r1g2r1a1d2e1

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

supergrade is not an iScramble, QuickWords valid word

s1u2p3e4r5g6r7a8d9e10

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

Same letters words (Anagrams)

• REUPGRADES

Same letters plus one

• none

Same letters minus one

• GUEPARDES
• PERSUADER
• PREDAUERS
• REDARGUES
• REGRASPED
• REGUARDES
• REUPGRADE
• SUPERAGED
• SUPERAGER
• UPGRADERS