| Subject | English | Maltese |
| coal. | sorted coal | faħam nadif |
| environ. | waste sorting Separating waste into different materials, such as glass, metal, paper, plastic, etc. | tqassim tal-iskart |
| environ. | waste sorting unit Centralized recycling centres to which waste materials are brought and where they are separated | unità għat-tqassim tal-iskart |