ho and oh tie for the highest Scrabble score from ho at 5 points. The top 2 of 2 words are shown here, with the full list organized by length below.
There are 2 two-letter words hiding in ho: one comes from rearranging its letters, and ho itself is already a playable word with no unscrambling required. Here the everyday answers and the top-scoring plays are one and the same: ho and oh, worth 5 points apiece in Scrabble.
ho 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 one sense for ho. Scrabble and Words With Friends score tiles and not meanings, so every sense below is worth the same 5 points on a Scrabble board:
ho is one of two two-letter words the same letters produce. No arrangement of the same tiles scores higher in Scrabble, so playing ho unchanged also takes the maximum points these letters offer.
The highest-scoring plays from these letters are ho and oh, worth 5 points in Scrabble, and nothing else built from ho 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 ho produce 2 valid words in the Scrabble and Words With Friends dictionaries. The word count by length is: 2 two-letter words.