| raise(verb, worsen, intensify, heighten) |
| reproduce(flourish, thrive, multiply) |
| rise(verb, worsen, intensify, heighten) |
| rocket(verb, worsen, intensify, heighten) |
| run riot(expression, flourish, thrive, multiply) |
| scale(verb, worsen, intensify, heighten) |
| shoot up(expression, increase, swell, grow, expand) |
| snowball(flourish, thrive, multiply, mushroom) |
| spiral(verb, worsen, intensify, heighten) |
| spread(increase, swell, grow, expand, flourish) |
| spread out(expression, increase, swell, grow) |
| spring up(expression, increase, swell, grow, expand) |
| step up(verb, expression, worsen, intensify, heighten) |
| swell(increase, grow) |
| thrive(increase, swell, grow, flourish, multiply) |
| widen(verb, worsen, intensify, heighten) |
| worsen(verb, intensify, heighten) |