| Subject | English | Thesaurus |
| abbr., stat. | unordered categorical variable | nominal variable (ssn) |
| abbr., stat. | unordered categorical variable | variable with unordered categories (ssn) |
| abbr., stat. | variable with unordered categories | nominal variable (ssn) |
| abbr., stat. | variable with unordered categories | unordered categorical variable (ssn) |