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Stumble (v. i.) To trip in walking or in moving in any way with the legs; to strike the foot so as to fall, or to endanger a fall; to stagger because of a false step.
Stumble (v. i.) To walk in an unsteady or clumsy manner.
Stumble (v. i.) To fall into a crime or an error; to err.
Stumble (v. i.) To strike or happen (upon a person or thing) without design; to fall or light by chance; -- with on, upon, or against.
Stumble (v. t.) To cause to stumble or trip.
Stumble (v. t.) Fig.: To mislead; to confound; to perplex; to cause to err or to fall.
Stumble (n.) A trip in walking or running.
Stumble (n.) A blunder; a failure; a fall from rectitude.