to strike the foot against something, as in walking or running, so as to stagger or fall; trip.

to walk or go unsteadily

to stumble down a dark passage.

to make a slip, mistake, or blunder, esp. a sinful one

to stumble over a question; to stumble and fall from grace.

to proceed in a hesitating or blundering manner, as in action or speech (often fol. by along ).

to discover or meet with accidentally or unexpectedly (usually fol. by on, upon, or across )

They stumbled on a little village.

to falter or hesitate, as at an obstacle to progress or belief.

to cause to stumble; trip.

to give pause to; puzzle or perplex.

the act of stumbling.

a moral lapse or error.

a slip or blunder.