blub and bulb tie for the highest Scrabble score from bulb at 8 points. The top 3 of 3 words are shown here, with the full list organized by length below.
There are 2 four-letter words hiding in bulb: one comes from rearranging its letters, and bulb 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 blub and bulb, each worth 8 points in Scrabble.
Below, the list runs in alphabetical order, with each score based on the playable tile set — premium squares not included.
Unscrambling bulb produces exactly one three-letter word: bub. It is not one of the common answers — a genuine unscrambler find — and it banks 7 points in Scrabble.
Swap a single tile in bulb 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.
bulb 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 4-point gap between the two totals comes from the tile values themselves: Scrabble and Words With Friends price the same letters differently.
Dictionaries record six senses for bulb. Scrabble and Words With Friends score tiles and not meanings, so every sense below is worth the same 8 points on a Scrabble board:
bulb is one of two four-letter words the same letters produce. No arrangement of the same tiles scores higher in Scrabble, so playing bulb unchanged also takes the maximum points these letters offer.
The highest-scoring plays from these letters are blub and bulb, worth 8 points in Scrabble, and nothing else built from bulb 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 bulb produce 3 valid words in the Scrabble and Words With Friends dictionaries. The word count by length is: 2 four-letter words and 1 three-letter word.