| Subject | English | Basque |
| environ. | concept of environment The development at any level of a general notion of the surrounding ecosystem, its foundational relationship to human life and the need to preserve its integrity | ingurugiroaren kontzeptu |
| environ. | indefinite legal concept A condition or extent of time in a government enforced contract, instrument or agreement that lacks precision, distinguishing characteristics or fixed boundaries | lege-kontzeptu zehaztugabe |