There are 20 words that start with 'ampl'.
| ample | amply |
| ampler | amplest |
| amplify | amplexus |
| ampleness | amplidyne |
| amplified | amplifier |
| amplifies | amplitude |
| amplexuses | amplidynes |
| amplifiers | amplifying |
| amplitudes | amplenesses |
| amplification | amplifications |
Note: These 20 words that start with 'ampl' are found from the USA & Canada version of the tournament Scrabble word list.