Premier (adjective / noun) — الأول أو الرئيس: First in importance; a prime minister. Below are 8 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Most important or notable; first in position.
The highest point or part; first in rank; to exceed.
The person with highest authority in a group — the main leader; also 'most important' as an adjective
The upper part of the body with the brain; a leader; to lead.
leadingprincipalprime ministerfirst
Of the highest quality, excellence, or suitability — the most good, effective, or desirable option