| indicator abbr. | |
| gen. | index |
| earth.sc. tech. | radiation indicator |
| econ. | Bellwether |
| environ. | indicator |
| industr. construct. met. | tracer |
| IT dat.proc. | operator indicator |
| IT nat.sc. | parameter |
| life.sc. environ. | indicator species |
| stat. commun. engl. | indicator |
|
structurele : 131 phrases in 24 subjects |