| background(noun, support, action, base, beginning) |
| backing(noun, support, action, base, beginning) |
| base(noun, support, action, beginning, source) |
| basis(noun, action, base, beginning, source) |
| bedrock(noun, support, action, base, beginning) |
| cause(noun, support, action, base, beginning) |
| center(noun, support, action, base, beginning) |
| chief ingredient(noun, expression, support, action, base) |
| core(noun, support, action, base, beginning) |
| crux(noun, support, action, base, beginning) |
| data(noun, support, action, base, beginning) |
| essence(noun, support, action, base, beginning) |
| essential(noun, support, action, base, beginning) |
| evidence(noun, support, action, base, beginning) |
| explanation(noun, support, action, base, beginning) |
| footing(noun, support, action, base, beginning) |
| fundamental(noun, support, action, base, beginning) |
| hard fact(noun, expression, support, action, base) |
| heart(noun, support, action, base, beginning) |
| infrastructure(noun, support, action, base, beginning) |