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Valid in Scrabble US · 10 points
1 synonym in 1 meaning · 1 playable in Scrabble US
one of two or more atoms with the same atomic number but with different numbers of neutrons
Up to 15 letters. Type ? or a space for a blank tile, up to two.
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Dictionary: official Scrabble dictionary (US), UK Scrabble Dictionary, Words with Friends ENABLE