| groundwork(noun, support, cause, start, reason) |
| basis(noun, support, action, cause, start) |
| foundation(noun, support, cause, start, reason) |
| base(noun, support, action, cause, start) |
| bed(noun, support, substance, authority, rest) |
| bottom(noun, support, cause, start, substance) |
| footing(noun, support, action, cause, start) |
| ground(noun, support, cause, start, substance) |
| substructure(noun, support, substance, authority, rest) |
| basement(noun, support, rest, base, balance) |
| grounds(noun, reason, substance, foundation, basis) |
| substratum(noun, support, action, cause, start) |
| basics(noun, substance, basis, grounds) |
| fundamentals(noun, base, basis) |
| root(noun, support, action, cause, reason) |
| underpinning(noun, support, action, cause, start) |
| rock(noun, stone) |
| fundamental(noun, support, action, cause, start) |
| fundament(noun, support, rest, base) |
| floor(noun, support, base, foundation, ground) |