This is the 286th most frequent Arabic word.
أعلى
Higher, highest, or top.
أعلى is used here as an adjective meaning the highest point among others.
هذه القمة هي الأعلى في الجبل.
This peak is the highest in the mountain.
أعلى is employed as an adjective representing the quality of exceeding in a hierarchy or rankings, specifically pertaining to levels.
يريد تحسين أدائه ليصل إلى أعلى مستوى.
He wants to improve his performance to reach the highest level.
أعلى is functioning as an adverb describing the direction moving upward or higher in relation to a point.