| fortify(verb, support, strong, increase, encourage) |
| add fuel to fire(verb, expression, idiom, support, increase) |
| add to(verb, expression, phrasal verb, support, increase) |
| augment(verb, support, increase, boost, sustain) |
| back up(verb, expression, phrasal verb, support, increase) |
| beef up(verb, expression, phrasal verb, support, increase) |
| bolster(verb, support, increase, boost, sustain) |
| boost(verb, support, increase, sustain, uphold) |
| brace(verb, support, encourage, secure, restore) |
| brawl |
| brighten(verb, shine, glow, illuminate, lighten) |
| buff up(verb, expression, phrasal verb, enliven, illuminate) |
| build up(verb, expression, phrasal verb, support, increase) |
| bulwark(verb, support, secure, protect, strengthen) |
| burnish(verb, enliven, illuminate, lighten) |
| buttress(verb, support, increase, secure, sustain) |
| carry(verb, support, increase, boost, sustain) |
| charge up(verb, expression, phrasal verb, support, secure) |
| clear up(verb, expression, phrasal verb, enliven, illuminate) |
| consolidate(verb, support, secure, ready, protect) |