aria and raia tie for the highest Scrabble score from raia at 4 points. The top 8 of 8 words are shown here, with the full list organized by length below.
There are 2 four-letter words hiding in raia: one comes from rearranging its letters, and raia itself is already a playable word with no unscrambling required. No common everyday answer stands out among these four-letter results, so let the score decide: the highest-scoring words are aria and raia, each worth 4 points in Scrabble.
There are 3 two-letter words that can be made by unscrambling the letters in raia. No common everyday answer stands out among these two-letter results, so let the score decide: the highest-scoring words are aa, ai, and ar, each worth 2 points in Scrabble.
Swap a single tile in raia and you get a different four-letter rack with its own word list. None of these appear in the results above — they share 3 of the 4 letters, not all of them.
raia is in the NWL, the official Scrabble word list for North America, and in the Words With Friends dictionary, so it's playable exactly as it stands and needs no unscrambling.
Both totals match, because every tile in raia carries the same value on a Scrabble board and on a Words With Friends board.
raia is one of two four-letter words the same letters produce. No arrangement of the same tiles scores higher in Scrabble, so playing raia unchanged also takes the maximum points these letters offer.
The highest-scoring plays from these letters are aria and raia, worth 4 points in Scrabble, and nothing else built from raia earns more points in Scrabble. Words With Friends prices the same letters differently, so the top of the list changes on a Words With Friends board. Both scores count tile values only and exclude premium squares.
The letters in raia produce 8 valid words in the Scrabble and Words With Friends dictionaries. The word count by length is: 2 four-letter words, 3 three-letter words and 3 two-letter words.