Hidden inside index sit index and nixed, five-letter plays tied at the top of this rack with 13 points in Scrabble apiece. In all, 21 valid words come out of this rack, grouped by length below and checked for Words With Friends as well as Scrabble.
index and nixed tie for the highest Scrabble score from index at 13 points. The top 10 of 21 words are shown here, with the full list organized by length below.
There are 2 five-letter words hiding in index: one comes from rearranging its letters, and index itself is already a playable word with no unscrambling required. No common everyday answer stands out among these five-letter results, so let the score decide: the highest-scoring words are index and nixed, each worth 13 points in Scrabble.
1 six-letter word can be made using all the letters in index plus one additional letter.
Swap a single tile in index and you get a different five-letter rack with its own word list. None of these appear in the results above — they share 4 of the 5 letters, not all of them.
index 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.
The 1-point gap between the two totals comes from the tile values themselves: Scrabble and Words With Friends price the same letters differently.
Dictionaries record eight senses for index. Scrabble and Words With Friends score tiles and not meanings, so every sense below is worth the same 13 points on a Scrabble board:
index is one of two five-letter words the same letters produce. No arrangement of the same tiles scores higher in Scrabble, so playing index unchanged also takes the maximum points these letters offer.
The highest-scoring plays from these letters are index and nixed, worth 13 points in Scrabble, and nothing else built from index 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 index produce 21 valid words in the Scrabble and Words With Friends dictionaries. The word count by length is: 2 five-letter words, 4 four-letter words, 7 three-letter words and 8 two-letter words.