chaff needs no unscrambling at all — the five-letter word is already the strongest play its own letters allow, banking 16 points in Scrabble as it stands. In all, 8 valid words come out of this rack, grouped by length below and checked for Words With Friends as well as Scrabble.
chaff is the highest-scoring word from chaff, worth 16 points in Scrabble. The top 8 of 8 words are shown here, with the full list organized by length below.
Only one five-letter word uses the letters in chaff — and it is chaff itself. No unscrambling is needed: the word is already playable as written, worth 16 points in Scrabble.
Unscrambling chaff produces exactly one four-letter word: caff. It is not one of the common answers — a genuine unscrambler find — and it banks 12 points in Scrabble.
Swap a single tile in chaff 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.
chaff 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 chaff carries the same value on a Scrabble board and on a Words With Friends board.
Dictionaries record three senses for chaff. Scrabble and Words With Friends score tiles and not meanings, so every sense below is worth the same 16 points on a Scrabble board:
chaff is the only five-letter word the same letters produce. No arrangement of the same tiles scores higher in Scrabble, so playing chaff unchanged also takes the maximum points these letters offer.
The highest-scoring play from these letters is chaff, worth 16 points in Scrabble, and no other word from chaff 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 chaff produce 8 valid words in the Scrabble and Words With Friends dictionaries. The word count by length is: 1 five-letter word, 1 four-letter word, 3 three-letter words and 3 two-letter words.