1.  error(n = noun.act) fault, mistake - a wrong action attributable to bad judgment or ignorance or inattention; "he made a bad mistake"; "she was quick to point out my errors"; "I could understand his English in spite of his grammatical faults"
is a kind of nonaccomplishment, nonachievement
has particulars: blot, smear, smirch, spot, stain, confusion, mix-up, incursion, miscalculation, misestimation, misreckoning, distortion, miscue, parapraxis, slip, slip-up, offside, lapse, oversight, omission, skip, bloomer, blooper, blunder, boner, boo-boo, botch, bungle, flub, foul-up, fuckup, pratfall, balls-up, ballup, cockup, mess-up, betise, folly, foolishness, imbecility, stupidity, renege, revoke
Derived form verb err₁

2.  error(n = noun.attribute) erroneousness - inadvertent incorrectness;
is a kind of incorrectness, wrongness
has particulars: deviation
Derived form verb err₁

3.  error(n = noun.cognition) erroneous belief - a misconception resulting from incorrect information;
is a kind of misconception

4.  error(n = noun.act) misplay - (baseball) a failure of a defensive player to make an out when normal play would have sufficed;
is a kind of failure

5.  error(n = noun.attribute) wrongdoing - departure from what is ethically acceptable;
is a kind of evil, evilness

6.  error(n = noun.event) computer error - (computer science) the occurrence of an incorrect result produced by a computer;
is a kind of happening, natural event, occurrence, occurrent
has particulars: hardware error, programming error, software error, algorithm error

7.  error(n = noun.communication) mistake - part of a statement that is not correct; "the book was full of errors"
is a kind of misstatement
has particulars: corrigendum, erratum, literal, literal error, misprint, typo, typographical error

1.  A wandering; a roving or irregular course. [1913 Webster]
"The rest of his journey, his error by sea." [1913 Webster]

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. [1913 Webster]

3.  A departing or deviation from the truth; falsity; false notion; wrong opinion; mistake; misapprehension. [1913 Webster]
"His judgment was often in error, though his candor remained unimpaired." [1913 Webster]

4.  A moral offense; violation of duty; a sin or transgression; iniquity; fault. Ps. xix. 12. [1913 Webster]

5.  The difference between the approximate result and the true result; -- used particularly in the rule of double position. [1913 Webster]

6.  The difference between an observed value and the true value of a quantity. [1913 Webster]

7.  A mistake in the proceedings of a court of record in matters of law or of fact. [1913 Webster]

8.  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. [1913 Webster]

error, n.
1 a mistake.
2 the condition of being wrong in conduct or judgement (led into error).
3 a wrong opinion or judgement.
4 the amount by which something is incorrect or inaccurate in a calculation or measurement.

Derivative:
errorless adj.

Etymology:
ME f. OF errour f. L error -oris (as ERR)

N  heterodoxy, error, false doctrine, heresy, schism, schismaticism, schismaticalness, recusancy, backsliding, apostasy, atheism, bigotry, fanaticism, iconoclasm, hyperorthodoxy, precisianism, bibliolatry, sabbatarianism, puritanism, anthropomorphism, idolatry, superstition, dissent, sectarism, sectarianism, noncomformity, secularism, syncretism, protestantism, Arianism, Adventism, Jansenism, Stundism, Erastianism, Calvinism, quakerism, methodism, anabaptism, Puseyism, tractarianism, ritualism, Origenism, Sabellianism, Socinianism, Deism, Theism, materialism, positivism, latitudinarianism High Church, Low Church, Broad Church, Free Church, ultramontanism, papism, papistry, monkery, papacy, Anglicanism, Catholicism, Romanism, popery, Scarlet Lady, Church of Rome, Greek Church, paganism, heathenism, ethicism, mythology, polytheism, ditheism, tritheism, dualism, heathendom, Judaism, Gentilism, Islamism, Islam, Mohammedanism, Babism, Sufiism, Neoplatonism, Turcism, Brahminism, Hinduism, Buddhism, Sabianism, Gnosticism, Hylotheism, Mormonism, Christian Science, heretic, apostate, antichrist, pagan, heathen, painim, paynim, giaour, gentile, pantheist, polytheist, idolator, schismatic, sectary, sectarian, sectarist, seceder, separatist, recusant, dissenter, nonconformist, nonjuror, bigot, fanatic, abdal, iconoclast, latitudinarian, Deist, Theist, Unitarian, positivist, materialist, Homoiousian, Homoousian, limitarian, theosophist, ubiquitarian, skeptic, Protestant, Huguenot, orthodox dissenter, Congregationalist, Independent, Episcopalian, Presbyterian, Lutheran, Calvinist, Methodist, Wesleyan, Ana, Baptist, Mormon, Latter-day Saint, Irvingite, Sandemanian, Glassite, Erastian, Sublapsarian, Supralapsarian, Gentoo, Antinomian, Swedenborgian, Adventist, Bible Christian, Bryanite, Brownian, Christian Scientist, Dunker, Ebionite, Eusebian, Faith Curer, Curist, Familist, Jovinianist, Libadist, Quaker, Restitutionist, Shaker, Stundist, Tunker, ultramontane, Anglican, Oxford School, tractarian, Puseyite, ritualist, Puritan, Catholic, Roman, Catholic, Romanist, papist, Jew, Hebrew, Rabbinist, Rabbist, Sadducee, Babist, Motazilite, Mohammedan, Mussulman, Moslem, Shiah, Sunni, Wahabi, Osmanli, Brahmin, Brahman, Parsee, Sufi, Buddhist, Magi, Gymnosophist, fire worshiper, Sabian, Gnostic, Rosicrucian, heterodox, heretical, unorthodox, unscriptural, uncanonical, antiscriptural, apocryphal, unchristian, antichristian, schismatic, recusant, iconoclastic, sectarian, dissenting, dissident, secular, (lay), pagan, heathen, heathenish, ethnic, ethnical, gentile, paynim, pantheistic, polytheistic, Judaical, Mohammedan, Brahminical, Buddhist, Romish, Protestant, bigoted superstitious, fanatical, idolatrous, visionary, slave to no sect, superstitione tollenda religio non tollitur.

N  vice, evil-doing, evil courses, wrongdoing, wickedness, viciousness, iniquity, peccability, demerit, sin, Adam, old Adam, offending Adam, immorality, impropriety, indecorum, scandal, laxity, looseness of morals, enphagy, dophagy, exophagy, want of principle, want of ballast, obliquity, backsliding, infamy, demoralization, pravity, depravity, pollution, hardness of heart, brutality, corruption, knavery, profligacy, flagrancy, atrocity, cannibalism, lesbianism, Sadism, infirmity, weakness, weakness of the flesh, frailty, imperfection, error, weak side, foible, failing, failure, crying sin, besetting sin, defect, deficiency, cloven foot, lowest dregs of vice, sink of iniquity, Alsatian den, gusto picaresco, fault, crime, criminality, sinner, brothel, gambling house, joint, opium den, shooting gallery, crack house, vicious, sinful, sinning, wicked, iniquitous, immoral, unrighteous, wrong, criminal, naughty, incorrect, unduteous, undutiful, unprincipled, lawless, disorderly, contra bonos mores, indecorous, unseemly, improper, dissolute, profligate, scampish, unworthy, worthless, desertless, disgraceful, recreant, reprehensible, blameworthy, uncommendable, discreditable, disreputable, Sadistic, base, sinister, scurvy, foul, gross, vile, black, grave, facinorous, felonious, nefarious, shameful, scandalous, infamous, villainous, of a deep dye, heinous, flagrant, flagitious, atrocious, incarnate, accursed, Mephistophelian, satanic, diabolic, hellish, infernal, stygian, fiendlike, hell-born, demoniacal, devilish, fiendish, miscreated, misbegotten, demoralized, corrupt, depraved, evil-minded, evil-disposed, ill-conditioned, malevolent, heartless, graceless, shameless, virtueless, abandoned, lost to virtue, unconscionable, sunk in iniquity, lost in iniquity, steeped in iniquity, incorrigible, irreclaimable, obdurate, reprobate, past praying for, culpable, reprehensible, unjustifiable, indefensible, inexcusable, inexpiable, unpardonable, irremissible, weak, frail, lax, infirm, imperfect, indiscrete, demoralizing, degrading, wrong, sinfully, without excuse, Int, O tempora!, O mores!, alitur vitium vivitque tegendo, genus est mortis male vivere, mala mens malus animus, nemo repente fuit turpissimus, the trail of the serpent is over them all, to sanction vice and hunt decorum down.

N  guilt, guiltiness, culpability, criminality, criminousness, deviation from rectitude, sinfulness, misconduct, misbehavior, misdoing, misdeed, malpractice, fault, sin, error, transgression, dereliction, delinquency, indiscretion, lapse, slip, trip, faux pas, peccadillo, flaw, blot, omission, failing, failure, break, bad break!, capital crime, delictum, offense, trespass, misdemeanor, misfeasance, misprision, malefaction, malfeasance, malversation, crime, felony, enormity, atrocity, outrage, deadly sin, mortal sin, deed without a name, corpus delicti, guilty, to blame, culpable, peccable, in fault, at fault, censurable, reprehensible, blameworthy, uncommendable, illaudable, weighed in the balance and found wanting, exceptionable, in flagrante delicto, red-handed, in the very act, with one's hand in the cookie jar, cui prodest scelus in fecit, culpam paena premit comes, O would the deed were good!, responsibility prevents crimes se judice nemo noce, so many laws argues so many sins.

N  error, fallacy, misconception, misapprehension, misstanding, misunderstanding, inexactness, laxity, misconstruction, miscomputation, non sequitur, mis-statement, mis-report, mumpsimus, mistake, miss, fault, blunder, quiproquo, cross purposes, oversight, misprint, erratum, corrigendum, slip, blot, flaw, loose thread, trip, stumble, botchery, slip of the tongue, slip of the lip, Freudian slip, slip of the pen, lapsus linguae, clerical error, bull, haplography, illusion, delusion, snare, false impression, false idea, bubble, self-decit, self-deception, mists of error, heresy, hallucination, false light, dream, fable, bias, misleading, erroneous, untrue, false, devoid of truth, fallacious, apocryphal, unreal, ungrounded, groundless, unsubstantial, heretical, unsound, illogical, inexact, unexact inaccurate, incorrect, indefinite, illusive, illusory, delusive, mock, ideal, spurious, deceitful, perverted, controvertible, unsustainable, unauthenticated, untrustworthy, exploded, refuted, discarded, in error, under an error, mistaken, tripping, out, out in one's reckoning, aberrant, beside the mark, wide of the mark, wide of the truth, way off, far off, astray, on a false scent, on the wrong scent, in the wrong box, outside the ballpark, at cross purposes, all in the wrong, all out, more or less, errare est humanum, mentis gratissimus error, on the dubious waves of error tost, to err is human, to forgive divine, you lie -- under a mistake.

algorithm error, by trial and error, computer error, disk error, error correction code, hardware error, inborn error of metabolism, literal error, margin of error, plaintiff in error, programming error, rounding error, run-time error, runtime error, semantic error, software error, syntax error, system error, trial and error, truncation error, typographical error, writ of error