| К-Index | |
| astr. | three-hour-range-index; К-index of geomagnetic activity |
| Index | |
| comp. | index |
| environ. | index |
| fin. | indice |
| life.sc. | reading index |
| math. | index number |
| nucl.phys. | index |
| stat. | indicator |
| Index- | |
| law, ADR | index-linked |
|
Roam : 2 phrases in 1 subject |
| Communications | 2 |