MEANING:
v.intr
.
To miss one's step in walking or running; trip and almost fall.
To proceed unsteadily or falteringly; flounder. See Synonyms at
blunder.
To act or speak falteringly or clumsily.
EXAMPLE SENETNCES:
1. He stumbled over the edge of the carpet.
2. He stumbled along the track in the dark.
3. He stumbles over his words when speaking in public.