Definitions
1.nounA fall, trip or substantial misstep.
2.nounAn error or blunder.
3.nounA clumsy walk.
4.verbTo trip or fall; to walk clumsily."He stumbled over a rock."
5.verbTo make a mistake or have trouble."I always stumble over verbs in Spanish."
6.verbTo cause to stumble or trip.
7.verbTo mislead; to confound; to cause to err or to fall.
8.verbTo strike or happen (upon a person or thing) without design; to fall or light by chance; with on, upon, or against.