| strengthen(verb, support, hold, close, get) |
| fortify(verb, support, close, help, set) |
| brace(noun, verb, support, hold, close) |
| support(verb, hold, help, fix, advance) |
| buttress(verb, support, hold, close, help) |
| bolster(verb, support, hold, help, fix) |
| intensify(verb, support, get, advance, increase) |
| augment(verb, support, get, help, advance) |
| boost(verb, support, get, help, advance) |
| increase(verb, support, get, increase, develop) |
| sustain(verb, support, hold, help, increase) |
| harden(verb, support, close, set, increase) |
| enlarge(verb, support, get, advance, increase) |
| toughen(verb, support, close, set, fix) |
| recruit(verb, get, increase, promote, strength) |
| shore up(verb, expression, phrasal verb, support, hold) |
| restore(verb, support, fix, increase, encourage) |
| stiffen(verb, support, close, set, fix) |
| prop(verb, support, hold, help, fix) |
| amplify(verb, get, advance, increase, develop) |