THESAURUS
shore up
afford support, back, back up, bear, bear out, bear up, beef up, bolster, bolster up, brace, brace up, buoy up, buttress, carry, case harden, confirm, cradle, crutch, cushion, finance, fortify, fund, gird, give support, harden, hold, hold up, invigorate, keep, keep afloat, keep up, lend support, mainstay, maintain, nerve, pillow, prop, prop up, refresh, reinforce, reinvigorate, restrengthen, rigidify, screw up, shore, shoulder, stay, steel, stiffen, strengthen, subsidize, subvention, subventionize, support, sustain, temper, tense, tighten, toughen, trice up, underbrace, undergird, underlie, underpin, underset, upbear, uphold, upkeep
ROGET THESAURUS
shore up
Support
VB
be supported, lie on, sit on, recline on, lean on, loll on, rest on, stand on, step on, repose on, abut on, bear on, be based on, have at one's back, bestride, bestraddle, support, bear, carry, hold, sustain, shoulder, hold up, back up, bolster up,
shore up, uphold, upbear, prop, under prop, under pin, under set, riprap, bandage, give support, furnish support, afford support, supply support, lend support, give foundations, furnish foundations, afford foundations, supply foundations, lend foundations, bottom, found, base, ground, imbed, embed, maintain, keep on foot, aid.