There are 18 words that end with 'igate'.
| ligate | frigate |
| levigate | litigate |
| mitigate | fumigate |
| irrigate | navigate |
| obligate | castigate |
| colligate | fustigate |
| instigate | profligate |
| investigate | subirrigate |
| reinvestigate | circumnavigate |
Note: These 18 words that end with 'igate' are found from the USA & Canada version of the tournament Scrabble word list.