free fallTranslate free fall | into German | into Italian Definition of free fall noun [mass noun] downward movement under the force of gravity only:the path of a body in free fall a rapid decline that cannot be stopped:her career seemed about to go into free fall the movement of a spacecraft in space without thrust from the engines. verb (free-fall) [no object] move under the force of gravity only; fall rapidly: I was free-falling and was quickly 1,000 ft below himfree fall in other Oxford dictionaries Definition of free fall in the US English dictionary