| Algebra | Algebras. |
| Alphabet | Alphabets. |
| Automaton | Automata. |
| Category | Categories. |
| Field | Fields. |
| Globular | Globular sets. |
| Graph | Graphs. |
| Group | Groups. |
| Matrix | Matrices. |
| Module | Modules. |
| Monoid | Monoids. |
| Precategory | Higher-dimensional precategories. |
| Ring | Rings. |
| Series | Formal series. |