| fundamental(noun, adjective, support, action, part) |
| basis(noun, law, action, start, top) |
| element(noun, drop, part, condition, material) |
| basic(noun, adjective, law, drop, part) |
| base(noun, support, action, beginning, source) |
| essential(noun, adjective, support, action, drop) |
| foundation(noun, law, base, beginning, source) |
| germ(noun, cause, beginning, stone, source) |
| alphabet |
| beginning(noun, action, start, rise, top) |
| egg(noun, cause, beginning, stone, source) |
| embryo(noun, cause, beginning, stone, source) |
| principle(noun, law, support, action, drop) |
| root(noun, support, action, cause, start) |
| ABC |
| ABCs(noun, law, condition, foundation, essence) |
| bud(noun, cause, beginning, stone, source) |
| ABC's |
| bedrock(noun, support, action, base, beginning) |
| first principle(noun, expression, idiom) |