| mainstay(noun, support, prop, backbone) |
| buttress(noun, support, prop, pillar, backbone) |
| anchor(noun, support, prop, pillar, backbone) |
| backbone(noun, support, prop, pillar, bulwark) |
| brace(noun, support, prop, pillar, backbone) |
| bulwark(noun, support, prop, pillar, backbone) |
| crutch(noun, support, prop, pillar, backbone) |
| linchpin(noun, support, prop, pillar, backbone) |
| main support |
| maintainer(support, prop, pillar, backbone, bulwark) |
| pillar(noun, support, prop, backbone) |
| sinew(noun, support, prop, pillar, backbone) |
| standby(noun, support, prop, pillar, backbone) |
| strength(noun, support, prop, pillar, backbone) |
| sustainer(noun, support, prop, pillar, backbone) |
| upholder(noun, support, prop, pillar, backbone) |
| good right arm(noun, expression, idiom, support, prop) |
| greatest strength |
| main strength |
| principal support |