To cause to die; put to death; kill; slay.To cause to cease; subdue; crush: as, to quell an insurrection.To reduce to peace or inaction; quiet; allay.To dash out; destroy.Synonyms To overpower, put down, lay, smother.To calm, compose.To die; perish.To abate.n. Murder.n. Power or means of quelling or subduing.To well or flow out.n. A spring; a fountain; a source from which water wells out.