Is REX a valid word?

REX is the Latin word for king, with the plural REGES, and in the word list it is also an animal, like a rabbit or cat, with a short wavy coat, whose plural is REXES. REX uses an R, an E and the X, worth 10 before any bonus. Learn it with LEX and VOX, the other Latin X words.

Before any bonus squares: R 1 + E 1 + X 8 = 10. On a double-word square that's 20, on a triple-word 30, and every letter bonus under one of these tiles is applied first.

Later in the game, put the X on a 3L square and REX is worth 26 before any word bonus.

Place that one tile so it also forms a word in the other direction and both words score.

Swap any one letter of REX and these are still words:

No other word in the list uses exactly the letters R, E and X.

REX is a king, from Latin, and also an animal with a curly coat. Its plural is REGES.

• Three-letter words with J, Q, X or Z

Tileside keeps score, checks words like this one during a challenge, tracks the tiles left in the bag and times turns. It runs in your phone's browser with no account and works offline.

Tileside checks words against the North American list, the NASPA Word List 2023. Your group's chosen dictionary always wins.

Works with the Scrabble board game, played at the table. Tileside is an independent product, not affiliated with or endorsed by the makers of Scrabble.