| Subject | English | Arabic |
| environ. | EC regulation on existing chemicals Regulation designed to identify and control of risks deriving from existing chemicals. According to this program the main goal is the collection of basic information about existing chemicals including their uses and characteristics, environmental fate and pathways, toxicity and ecotoxicity | تنظيمات المفوضية الأوروبية حول المواد الكيماوية الموجودة |
| environ. | existing chemical Chemical products existing before 18-09-1981, chemicals traded or introduced in the EC defore 18.09.1981 concerning Chemikaliengesetz | المنتجات الكيماوية القائمة |
| law | existing claim | ادعاء قائم |
| law | existing liabilities | التزامات قائمة |
| comp., MS | Join an Existing Conference... | الإنضمام إلى مؤتمر موجود... (An item on the Actions menu that adds the user to an existing conference) |
| genet. | pre-existing ex situ collections | مجموعة خارج الموقع موجودة سالقا |