Level

au même niveau

(at the same height as some reference)

constant

(being unvaried)

plat

(same height at all places)

à ras

(at the same height as some reference)

niveau

(tool)

niveau

(distance relative to a given reference elevation)

niveau

(degree or amount)

niveau

(gaming: discrete segment of a game)

niveau

(gaming: numeric value for something or someone's experience and power)

profondeur

(computer science: distance from the root node of a tree structure)

niveler

(to adjust so as to make level)