How to Use assumption in a Sentence

assumption

noun

• I'm telling you our arrival time on the assumption that you will check to see whether or not our flight is on time before you come to the airport.
• Her plan is based on the underlying assumption that the economy will improve in the near future.
• I made the assumption that he was coming, so I was surprised when he didn't show up.
• He will come home tomorrow. At least, that's my assumption.
• Many scientific assumptions about Mars were wrong.
• The assumption here is that Apple would equip the handset with the A16 chip.
  — Chris Smith, BGR, 1 Nov. 2022
• The assumption was that G.E.’s managers were the best in the world, and there was easy money to be made on Wall Street.
  — New York Times, 9 Nov. 2021
• There was hope and an assumption the tourney might get pushed back a year.
  — Randy McRoberts, Baltimore Sun, 5 Aug. 2022
• One of the company’s big assumptions about the phone had turned out to be wrong.
  — Verne Kopytoff, Fortune, 5 July 2025
• There’s this assumption that what sells best is your best work.
  — Lily Moayeri, SPIN, 9 Oct. 2024
• The deal includes the assumption of debt and is expected to close in the second half of this year.
  — Chris Wack, WSJ, 11 May 2022
• Change the assumption that all members have to act, think and look a certain way.
  — Gordon Monson, The Salt Lake Tribune, 2 Jan. 2022
• Plus, YuChen puts to rest, once and for all, the false assumption that steamed food is drab, bland, or boring.
  — Antara Sinha, Bon Appétit, 14 Feb. 2022
• The assumption, of course, is that the delay is measured in weeks or a small number of months.
  — Washington Post, 20 Apr. 2022
• The assumption is that the game was postponed because both teams were low on goalies.
  — Dylan Bumbarger, oregonlive, 31 Dec. 2021
• What is the worst assumption someone has made about you? 12.
  — Jasmine Washington, Seventeen, 23 Feb. 2023
• Or at Google’s assumption his own name must be spelled wrong.
  — Washington Post, 9 Jan. 2022
• DirecTV will pay EchoStar $1 plus the assumption of debt.
  — Georg Szalai, The Hollywood Reporter, 30 Sep. 2024
• If the assumption is that all of these questions come from racist, white people, Wright said that is not the case.
  — Veronica Wells, Essence, 3 Mar. 2022
• The assumption was that the street grid would go through the site and cut it up into lots of little programmed bits.
  — Alexandra Lange, The New Yorker, 29 Apr. 2022
• The assumption was that the parent's action's were racist.
  — Kathryn Muchnick, Journal Sentinel, 7 June 2024
• The sailors would pay dearly for this faulty assumption.
  — Matthew F. Delmont, Smithsonian Magazine, 25 Aug. 2022
• And the assumption these are super rich people on these yachts?
  — Chris Klimek, Smithsonian Magazine, 21 Sep. 2023
• In some parts of the country, masks have become rare sights, and the assumption is the pandemic is over.
  — NBC News, 17 Apr. 2022
• The invasion of Ukraine taught me that this assumption was flawed.
  — Paul Podolsky, WSJ, 12 Sep. 2022
• The assumption is that some of the qualities of the person who once came in contact with the object will rub off.
  — Dimitris Xygalatas, The Conversation, 23 June 2022
• Given his job is to keep the president alive, the safe assumption would be that Xavier was hurt in the line of duty.
  — Ben Travers, IndieWire, 28 Jan. 2025
• For that assumption to hold true, of course, the value of ether will have to remain fairly high throughout the years.
  — WIRED, 20 Aug. 2022
• The assumption at the time was that Lutz would go on to become a fixture in the action genre, but the Italian actor had a very different takeaway from her breakout turn.
  — Brian Davids, HollywoodReporter, 8 Aug. 2025
• In early discovery, speed helps teams test assumptions and surface flaws quickly.
  — Expert Panel®, Forbes.com, 14 Aug. 2025