Synonym: convince, guarantee, pledge. Antonym: alarm. Similar words: assume, sure, assumption, ensure, for sure, make sure, exposure, measure up. Meaning: [ə'ʃʊə] 
v. 1. make certain of 2. inform positively and with certainty and confidence 3. assure somebody of the truth of something with the intention of giving the listener confidence 4. be careful or certain to do something; make certain of something 5. cause to feel sure; give reassurance to 6. make a promise or commitment.
v. 1. make certain of 2. inform positively and with certainty and confidence 3. assure somebody of the truth of something with the intention of giving the listener confidence 4. be careful or certain to do something; make certain of something 5. cause to feel sure; give reassurance to 6. make a promise or commitment. 
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(31) A win on Saturday will assure them of promotion to Division One.
(32) Journalists may enter the danger zone but unfortunately we cannot guarantee/assure their safety.
(33) Can you assure me that my father is not suffering?
(34) I hastened to assure her that there was no danger.
(35) It was done with the best intentions, I assure you.
(36) My proposition, I assure you, would be to our mutual benefit.
(37) I assure her that 1 will always remember her.
(38) You'd be quite safe, I assure you.
(39) Not a single penny, I assure you.
(40) It's just sheer nervousness, I assure you.
(41) No cheat, I assure you, my dear Doctor.
(42) But I can assure you I have my moments.
(43) Will he assure the House that he has had the unreserved support of the Opposition during the passage of that Bill?
(44) Basically, they assure me that the case is ready to proceed.
(45) In real life, I assure you, there is no such thing as algebra. Fran Lebowitz 
(46) I assure the hon. Gentleman that it is a subject in which I take the keenest interest.
(47) To assure party loyalty, the precinct captains merely accompany the voter into the voting machine.
(48) It's very quiet there, and you'll be able to relax, I can assure you.
(49) But none, I assure you, of an age or inclination to elope with an adolescent foreigner!
(50) Mr. McNamara Can the Minister assure the House that he entirely supports the primacy of the police in all security matters?
(51) The committee monitored referral practice during the study but there was no reinforcement of the guidelines to assure compliance.
(52) Taking the long view of things, Clinton insists his budget plan would assure balanced budgets well into the next century.
(53) I assure you he won't have trouble finding another job.
(54) Can my hon. and diplomatic Friend assure us that these important diplomatic communications were not ultimately put to any ignoble use?sentencedict.com
(55) Down the empty street he hurried, with many a furtive glance to assure himself that he was not being followed.
(56) The detector has active anti-condensation protection to assure trouble free operation in cold-rooms.
(57) Recent Supreme Court decisions have put limits on the use of affirmative action to assure diversity in student bodies.
(58) These tires assure good grip and a quiet, steady ride.
(59) And I can assure you that the Algonquin still vibrates with whatever turned on Mrs Parker and her vicious circle.
(60) I've taken it upon myself to assure the count that you're almost perfect.
More similar words: assume, sure, assumption, ensure, for sure, make sure, exposure, measure up, measure up to, measurement, issue, dress up, tissue, survey, surgeon, surgery, surface, surround, survival, survivor, insurance, surprising, surrounding, mass, pass, surprisingly, surveillance, asset, class, figure.