| supplement(verb, support, increase, boost, sustain) |
| support(verb, increase, establish, extend, sustain) |
| sustain(verb, support, increase, establish, extend) |
| switch on(verb, expression, phrasal verb, touch, raise) |
| temper(verb, support, increase, establish, extend) |
| thrill(verb, touch, raise, provoke, stimulate) |
| tone up(verb, expression, phrasal verb, support, increase) |
| touch(verb, raise, provoke, stimulate, arouse) |
| toughen(verb, support, increase, establish, extend) |
| trigger(verb, touch, raise, stimulate, arouse) |
| underline(verb, support, increase, boost, sustain) |
| urge(verb, touch, raise, provoke, stimulate) |
| vitalize(verb, touch, raise, stimulate, arouse) |
| wake(verb, touch, raise, provoke, stimulate) |
| waken(verb, touch, raise, provoke, stimulate) |
| wax(verb, support, increase, establish, extend) |
| whet(verb, touch, raise, provoke, stimulate) |
| whip up(verb, expression, phrasal verb, touch, raise) |
| work up(verb, expression, phrasal verb, touch, raise) |
| accompany(verb, enhance, add, complement) |