| Subject | English | Basque |
| math. | indicator function | funtzio indikatzaile |
| environ. | indicator of environmental management | ingurugiro-kudeaketaren adierazle |
| environ. | indicator of environmental quality Qualitative or quantitative parameter used as a measure of an environmental condition, e.g. of air or water quality | ingurugiro-kalitatearen adierazle |
| math. | indicator variable | adierazlearen aldagai |