Freedom from doubt; belief in yourself and your abilities:
— His assurance in his superiority did not make him popular.

synonyms: authority, confidence, self-assurance, self-confidence, sureness.

Roget 507: expectation, expectance, expectancy; anticipation, reckoning, calculation; foresight etc. 510.    contemplation, prospection^†, lookout; prospect, perspective, horizon, vista; destiny etc. 152.    suspense, waiting, abeyance; curiosity etc. 455; anxious expectation, ardent expectation, eager expectation, breathless expectation, sanguine expectation; torment of Tantalus.    hope etc. 858; trust etc. (belief) 484; auspices etc. (prediction) 511; assurance, confidence, presumption, reliance.    ... show more

Roget 885: insolence; haughtiness etc. adj.; arrogance, airs; overbearance^†; domineering etc. v.; tyranny etc. 739.    impertinence; sauciness etc. adj.; flippancy, dicacity^†, petulance, procacity^†, bluster; swagger, swaggering etc. v.; bounce; terrorism.    assumption, presumption; beggar on horseback; usurpation.    impudence, assurance, audacity, hardihood, front, face, brass; shamelessness etc. adj.; effrontery, hardened front, face of brass.    assumption of infallibility.    saucebox etc. (blusterer) 887^†.    ... show more

Roget 880: vanity; conceit, conceitedness; self-conceit, self-complacency, self-confidence, self-sufficiency, self-esteem, self-love, self-approbation, self-praise, self-glorification, self-laudation, self-gratulation^†, self-applause, self-admiration; amour propre [Fr.]; selfishness etc. 943.    airs, affected manner, pretensions, mannerism; egotism; priggism^†, priggishness; coxcombry, gaudery^†, vainglory, elation; pride etc. 878; ostentation etc. 882; assurance etc. 885.    vox et praeterea nihil [Lat.]; cheval de bataille [Fr.].    coxcomb etc. 854; Sir Oracle etc. 887.    ... show more

Roget 858: hope, hopes; desire etc. 865; fervent hope, sanguine expectation, trust, confidence, reliance; faith etc. (belief) 484; affiance, assurance; secureness, security; reassurance.    good omen, good auspices; promise, well grounded hopes; good prospect, bright prospect; clear sky.    assumption, presumption; anticipation etc. (expectation) 507.    hopefulness, buoyancy, optimism, enthusiasm, heart of grace, aspiration.    [person who is hopeful] optimist, utopian, utopist^†.    castles in the air, castles in Spain, chateaux en Espagne [Fr.], le pot aut lait [Fr.], Utopia, millennium; day dream, golden dream; dream of Alnaschar^†; airy hopes, fool's paradise; mirage etc. (fallacies of vision) 443; fond hope.    beam of hope, ray of hope, gleam of hope, glimmer of hope, flash of hope, dawn of hope, star of hope; cheer; bit of blue sky, silver lining, silver lining of the cloud, bottom of Pandora's box, balm in Gilead; light at the end of the tunnel.    anchor, sheet anchor, mainstay; staff etc. (support) 215; heaven etc. 981.    ... show more

Roget 535: affirmance, affirmation; statement, allegation, assertion, predication, declaration, word, averment; confirmation.    asseveration, adjuration, swearing, oath, affidavit; deposition etc. (record) 551; avouchment; assurance; protest, protestation; profession; acknowledgment etc. (assent) 488; legal pledge, pronouncement; solemn averment, solemn avowal, solemn declaration.    remark, observation; position etc. (proposition) 514, saying, dictum, sentence, ipse dixit [Lat.].    emphasis; weight; dogmatism etc. (certainty) 474; dogmatics etc. 887.    ... show more

Roget 484: belief; credence; credit; assurance; faith, trust, troth, confidence, presumption, sanguine expectation etc. (hope) 858; dependence on, reliance on.    persuasion, conviction, convincement^†, plerophory^†, self-conviction; certainty etc. 474; opinion, mind, view; conception, thinking; impression etc. (idea) 453; surmise etc. 514; conclusion etc. (judgment) 480.    tenet, dogma, principle, way of thinking; popular belief etc. (assent) 488.    firm belief, implicit belief, settled belief, fixed rooted deep-rooted belief, staunch belief, unshaken belief, steadfast belief, inveterate belief, calm belief, sober belief, dispassionate belief, impartial belief, well-founded belief, firm opinion, implicit opinion, settled opinion, fixed rooted deep-rooted opinion, staunch opinion, unshaken opinion, steadfast opinion, inveterate opinion, calm opinion, sober opinion, dispassionate opinion, impartial opinion, well-founded opinion &c.; uberrima fides [Lat.].    system of opinions, school, doctrine, articles, canons; article of faith, declaration of faith, profession of faith; tenets, credenda^†, creed; thirty-nine articles etc. (orthodoxy) 983.1; catechism; assent etc. 488; propaganda etc. (teaching) 537.    credibility etc. (probability) 472.    ... show more

Roget 474: certainty; necessity etc. 601; certitude, surety, assurance; dead certainty, moral certainty; infallibleness etc. adj.; infallibility, reliability; indubitableness, inevitableness, unquestionableness^†.    gospel, scripture, church, pope, court of final appeal; res judicata [Lat.], ultimatum positiveness; dogmatism, dogmatist, dogmatizer; doctrinaire, bigot, opinionist^†, Sir Oracle; ipse dixit [Lat.].    fact; positive fact, matter of fact; fait accompli [Fr.].    ... show more

Roget 156: chance, indetermination, accident, fortune, hazard, hap, haphazard, chance medley, random, luck, raccroc^†, casualty, contingence, adventure, hit; fate etc. (necessity) 601; equal chance; lottery; tombola^†; toss up etc. 621; turn of the table, turn of the cards; hazard of the die, chapter of accidents, fickle finger of fate; cast of the dice, throw of the dice; heads or tails, flip of a coin, wheel of Fortune; sortes^†, sortes Virgilianae^†.    probability, possibility, odds; long odds, run of luck; accidentalness; main chance, odds on, favorable odds.    contingency, dependence (uncertainty) 475; situation (circumstance) 8.    statistics, theory of Probabilities, theory of Chances; bookmaking; assurance; speculation, gaming etc. 621.    ... show more

Dutch: zelfverzekerdheid, zelfverzekerd, aplomb, zekerheid, zelfbewustheid, zelfvertrouwen
Polish: pewność

A binding commitment to do or give or refrain from something:
— An assurance of help when needed.

synonym: pledge.

Roget 771: security; guaranty, guarantee; gage, warranty, bond, tie, pledge, plight, mortgage, collateral, debenture, hypothecation, bill of sale, lien, pawn, pignoration^†; real security; vadium^†.    stake, deposit, earnest, handsel, caution.    promissory note; bill, bill of exchange; I.   O.U.; personal security, covenant, specialty; parole etc. (promise) 768.    acceptance, indorsement^†, signature, execution, stamp, seal.    sponsor, cosponsor, sponsion^†, sponsorship; surety, bail; mainpernor^†, hostage; godchild, godfather, godmother.    recognizance; deed of indemnity, covenant of indemnity.    authentication, verification, warrant, certificate, voucher, docket, doquet^†; record etc. 551; probate, attested copy.    receipt; acquittance, quittance; discharge, release.    muniment^†, title deed, instrument; deed, deed poll; assurance, indenture; charter etc. (compact) 769; charter poll; paper, parchment, settlement, will, testament, last will and testament, codicil.    ... show more

Roget 768: promise, undertaking, word, troth, plight, pledge, parole, word of honor, vow; oath etc. (affirmation) 535; profession, assurance, warranty, guarantee, insurance, obligation; contract etc. 769; stipulation.    engagement, preengagement; affiance; betroth, betrothal, betrothment.    ... show more

Polish: zapewnienie, upewnienie

A statement intended to inspire confidence.

A British term for some kinds of insurance.