| hot up |
| hype(verb, support, increase, boost, sustain) |
| intensate(verb, increase, raise, severe, boost) |
| key up |
| last(verb, take, cover, increase, open) |
| lend a hand(verb, expression, idiom, support, increase) |
| let out(verb, expression, take, cover, increase) |
| lighten(verb, increase, raise, severe, boost) |
| longer(verb, take, cover, increase, open) |
| make complex |
| make larger(verb, expression, take, cover, increase) |
| manifest |
| mantle(verb, take, cover, open, develop) |
| mushroom(verb, increase, open, develop, extend) |
| nerve |
| open(verb, take, cover, increase, develop) |
| open out(verb, expression, increase, open, develop) |
| outspread(verb, cover, increase, open, develop) |
| overestimate(verb, increase, raise, boost, swell) |
| pick up(verb, expression, support, increase, boost) |