Synonyms of bolster

1 Syllable
gird, stay, lath, buoying, prop, buoyed, buoy, help, aid, crutch, squab, boost, fed, beams
2 Syllables
propping, lintel, girded, braced, propped, crutches, bulwark, stirrup, cushion, brace, rafter, woolsack, feeding, scantling, girding, strengthen, crutching, stanchions, strengthens, buttress, headrest, pillow, cushions, crutched, sustains, uphold, sustain, support, expand, stanchion, assist, lintels, rafters, maintain, beanbag, carry
3 Syllables
upborne, pillared, reassuring, cushioned, underprop, strengthening, comforted, expanded, reinforcing, reassured, undergird, pillaring, reassure, sustaining, promoted, nurtured, upholding, cushioning, expanding, promoting, reinforce, strengthened
4 Syllables
undergirded, perpetuating, perpetuated, undergirding, cantilever, cantilevers, advocated, advocating, perpetuate