| stiffen(verb, support, increase, sustain, uphold) |
| subsidize(verb, support, keep, maintain, sustain) |
| temper(strengthen, harden) |
| toughen(verb, support, increase, sustain, uphold) |
| undergird(verb, support, hold, maintain, stay) |
| upbear(verb, support, hold, maintain, promote) |
| add fuel to fire(verb, expression, idiom, support, increase) |
| add to(verb, expression, phrasal verb, support, increase) |
| advance |
| advocate(verb, support, maintain, promote, encourage) |
| afford support |
| approve(verb, support, help, keep, maintain) |
| augment(verb, support, increase, boost, sustain) |
| bankroll(verb, support, help, keep, maintain) |
| base(verb, hold, maintain, stay, bear) |
| be a foundation for(verb, support, hold, maintain, stay) |
| bear out |
| bed(verb, hold, maintain, stay, bear) |
| befriend(verb, support, help, keep, maintain) |
| bolster up |