| foundation(noun, organization, concept, law, support) |
| base(noun, organization, concept, support, action) |
| cause(noun, action, cause, start, reason) |
| ground(noun, law, support, cause, start) |
| root(noun, support, action, drop, part) |
| groundwork(noun, organization, support, study, area) |
| reason(noun, action, cause, start, substance) |
| principle(noun, concept, law, action, drop) |
| footing(noun, support, action, cause, start) |
| source(noun, law, action, cause, start) |
| bottom(noun, support, quality, cause, start) |
| core(noun, organization, action, area, quality) |
| justification(noun, action, cause, reason, substance) |
| evidence(noun, law, action, cause, reason) |
| grounds(noun, concept, understanding, philosophy, cause) |
| fundament(noun, support, rest, base, foundation) |
| fundamental(noun, law, regulation, action, drop) |
| heart(noun, law, action, quality, cause) |
| origin(noun, law, body, cause, start) |
| substratum(noun, support, action, cause, start) |