| rarefy |
| reinforce(verb, stimulate, excite, boost, strengthen) |
| replenish(verb, stop, close, block, top) |
| sate(verb, stop, close, block, top) |
| satiate(verb, stop, close, block, top) |
| satisfy(verb, stop, close, block, top) |
| saturate(verb, stop, close, block, top) |
| shoal(verb, stop, close, block, top) |
| spread(verb, increase, raise, boost, swell) |
| start up(verb, expression, stimulate, excite, boost) |
| stimulate(verb, excite, boost, strengthen, animate) |
| stock(verb, stop, close, block, top) |
| stopper(verb, stop, close, block, top) |
| store(verb, stop, close, block, top) |
| strengthen(verb, stimulate, excite, boost, animate) |
| stuff(verb, stop, close, block, top) |
| supply(verb, stop, close, block, top) |
| surcharge(verb, increase, raise, boost, swell) |
| sustain(verb, stimulate, excite, boost, strengthen) |
| switch on(verb, expression, stimulate, excite, boost) |