| Subject | English | Russian |
| progr. | define a contract for the shape of an object | определить контракт на форму объекта (An interface in TypeScript is a way to define a contract for the shape of an object, specifying the structure it must have. Alex_Odeychuk) |
| gen. | description/object of the contract | предмет договора (Alexander Demidov) |
| gen. | object of the contract | предмет договора (Alexander Demidov) |