| snowball(verb, advance, increase, develop, raise) |
| spread out(verb, expression, phrasal verb, take, cover) |
| stretch out(verb, expression, phrasal verb, increase, open) |
| accrue(verb, increase) |
| balloon(increase, mount, soar) |
| bloat(verb, set, cover, increase, open) |
| build up(noun, verb, expression, advance, increase) |
| mount(verb, advance, increase, open, develop) |
| outstretch(verb, set, cover, extend, spread) |
| progress(verb, advance, increase, raise, rise) |
| prolong(verb, take, cover, advance, increase) |
| protract(verb, take, cover, advance, increase) |
| pyramid(verb, increase, open, develop, extend) |
| rise(verb, advance, increase, develop, raise) |
| strengthen(verb, advance, increase, raise, rise) |
| unfold(verb, take, set, cover, increase) |
| upgrade(verb, increase) |
| beef up(verb, expression, take, cover, increase) |
| bourgeon |
| build(verb, advance, increase, develop, raise) |