There are 20 words that end with 'ec'.
| sec | pec | rec |
| alec | exec | spec |
| codec | cusec | cosec |
| rebec | xebec | zebec |
| chebec | fennec | parsec |
| tanrec | tenrec | hypothec |
| megaparsec | kiloparsec | |
Note: These 20 words that end with 'ec' are found from the USA & Canada version of the tournament Scrabble word list.