home German Paley error er⋅ror [er-er] –noun 1. a deviation from accuracy or correctness; a mistake, as in action or speech: His speech contained several factual errors. 2. belief in something untrue; the holding of mistaken opinions. 3. the condition of believing what is not true: in error about the date. 4. a moral offense; wrongdoing; sin.  e a b c d e f g h i j k l m n o p q r s t u v w x y z epiphany ephemeral eventuality error exhausted equilibrium extension