1.A wandering; a roving or irregular course. (Obs.) "The rest of his journey, his error by sea."
2.A wandering or deviation from the right course or standard; irregularity; mistake; inaccuracy; something made wrong or left wrong; as, an error in writing or in printing; a clerical error.
3.A departing or deviation from the truth; falsity; false notion; wrong opinion; mistake; misapprehension. "His judgment was often in error, though his candor remained unimpaired."
4.A moral offense; violation of duty; a sin or transgression; iniquity; fault.
5.(Math.) The difference between the approximate result and the true result; used particularly in the rule of double position.
7.(Law.) A mistake in the proceedings of a court of record in matters of law or of fact.
8.(Baseball) A fault of a player of the side in the field which results in failure to put out a player on the other side, or gives him an unearned base.