Chartered (adjective) — معتمد / مرخّص رسمياً: Officially authorized by a charter, professionally licensed (as in a chartered accountant), or hired for exclusive use (a chartered flight); not charter alone (the document/hire act), and not chart (a data graph) Below are 8 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Officially recognized as meeting a required standard — certified, authorized, or formally approved by a competent authority
Officially permitted, approved, or given legal power to act; having formal permission from a competent authority; sanctioned and allowed
Officially verified or approved as meeting a standard — proven, authenticated, and stamped as valid; an adjective of verified status, not the noun certificate…
licensedcommissionedofficially approvedcredentialedhired exclusively