There are 14 words that start with 'alphab'.
| alphabet | alphabets |
| alphabeted | alphabetic |
| alphabeting | alphabetize |
| alphabetical | alphabetized |
| alphabetizer | alphabetizes |
| alphabetizers | alphabetizing |
| alphabetically | alphabetization |
Note: These 14 words that start with 'alphab' are found from the USA & Canada version of the tournament Scrabble word list.