To thrash in the chaff; also, to cleanse or sift, as barley.
- To be unsteady in purpose or action, as from loss of courage or confidence; waver. See Synonyms at hesitate.
- To speak hesitatingly; stammer.
- To move ineptly or haltingly; stumble.
- To operate or perform unsteadily or with a loss of effectiveness: The automobile engine faltered.
- Unsteadiness in speech or action.
- A faltering sound.