| aspect(noun, nature, quality, character, spirit) |
| attribute(noun, nature, quality, character, spirit) |
| backbone(noun, nature, quality, character, spirit) |
| base(noun, part, quality, character, spirit) |
| basis(noun, quality, character, spirit, significance) |
| be-all and end-all(noun, expression, idiom, nature, quality) |
| being(noun, nature, quality, character, spirit) |
| bottom(noun, nature, quality, character, spirit) |
| bottom line(noun, quality, character, spirit, heart) |
| burden(noun, quality, character, spirit, significance) |
| caliber(noun, nature, quality, character, spirit) |
| character(noun, nature, quality, spirit, significance) |
| constitution(noun, nature, quality, character, spirit) |
| core(noun, quality, character, spirit, significance) |
| crux(noun, quality, character, spirit, significance) |
| element(noun, quality, character, spirit, significance) |
| entity(noun, nature, quality, character, spirit) |
| essence(noun, spirit, significance, heart, source) |
| essentia(noun, nature, quality, character, spirit) |
| essentiality(noun, nature, quality, character, spirit) |