Maximum takeoff weight – Wikipedia

Maximum takeoff weight. Takeoff weight components. The maximum takeoff weight ( MTOW) or maximum gross takeoff weight ( MGTOW) or maximum takeoff mass ( MTOM) of an aircraft is the maximum weight at which the pilot is allowed to attempt to take off, due to structural or other limits. The analogous term for rockets is gross lift-off mass, or GLOW.

https://en.wikipedia.org/wiki/Maximum_takeoff_weight