ENGLISH
REFERENCE

opened

v. · adj.
US //ˈoʊpənd// UK //ˈəʊpənd// opened
  1. 1 moved to allow access (v.)
    A1 Beginner

    moved a door, window, or lid so that people or things could go through.

    the past tense of the action of moving a barrier or cover to allow access or visibility.

    Example

    He opened the heavy wooden door and invited the guests inside.

    Example

    She opened the envelope with trembling hands, fearing the contents might confirm her worst suspicions about the project's funding.
  2. 2 started a business day (v.)
    A2 Elementary

    started being ready for customers to come in.

    the past tense of making a place of business or a public building available for use or service.

    Example

    The new café opened at seven o'clock this morning.

    Example

    The museum opened its doors to the public after a three-year renovation that cost millions of dollars.
  3. 3 having been unsealed (adj.)
    B1 Intermediate

    describes something that is no longer closed or sealed.

    a participial adjective describing the state of having undergone the process of opening; often implies a seal has been broken.

    Example

    There was an opened bottle of milk sitting on the kitchen counter.

    Example

    The investigator noted several opened boxes in the warehouse, suggesting that the shipment had been tampered with before arrival.
    • unsealed
    • ajar

Last updated June 19, 2026