Expanse (noun) — مساحة: A wide, open area of land, sea or sky. Below are 8 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
To clean with a brush; to move swiftly; a wide range.
To spread out untidily; unplanned spread of a city.
The extent from end to end; a period of time; to stretch across.
A particular extent of space, surface, or region — a defined zone of land, study, activity, or responsibility
stretchtractextentbreadth
The boundless expanse beyond Earth; an area available.