| Subject | English | Estonian |
| environ. | waste sorting Separating waste into different materials, such as glass, metal, paper, plastic, etc. | prügi sortimine |
| environ. | waste sorting Separating waste into different materials, such as glass, metal, paper, plastic, etc. | jäätmete sortimine |
| environ. | waste sorting unit Centralized recycling centres to which waste materials are brought and where they are separated | jäätmesortimisettevõte |