There are 10 words that start with 'horsew'.
| horseweed | horsewhip |
| horseweeds | horsewhips |
| horsewoman | horsewomen |
| horsewhipped | horsewhipper |
| horsewhippers | horsewhipping |
Note: These 10 words that start with 'horsew' are found from the USA & Canada version of the tournament Scrabble word list.