There are 10 12-letter words that start with 'amp'.
| amperometric | amphetamines | amphibiously |
| amphibolites | amphibrachic | amphictyonic |
| amphidiploid | amphisbaenas | amphisbaenic |
| amphitheater | ||
Note: These 10 12-letter words that start with 'amp' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with amph, ampl, ampu, ampe, ampi, ampo, amps.
4-letter words start with 'amp' (1)