be sure

verb
UK: /biː ʃʊər/
US: /biː ʃʊr/

  1. To do something without any doubt; to make certain or take action to ensure something happens.

    1. Be sure to lock the door when you leave. [ ] [ ]
    2. Please be sure you have all necessary documents before submitting your application, to avoid delays. [ ] [ ]

  2. Used to emphasize that you expect someone to do something.

    1. Be sure to call me when you arrive. [ ] [ ]
    2. Be sure you are prepared to present your findings, as the meeting starts promptly at 9 AM. [ ] [ ]

Synonyms

ascertain ensure guarantee definitely make certain
be sure adjective

  1. To have no doubt; feel confident.

    1. I be sure I locked the door. [ ] [ ]
    2. Although the task is challenging, I be sure that with dedication, we can achieve our goals. [ ] [ ]
be sure interjection

  1. Used to express agreement or confirmation.

    1. "Can you help me?" "Be sure!" [ ] [ ]
    2. "Will you be there on time?" "Be sure, I wouldn't miss it for the world!" [ ] [ ]

Frequently Asked Questions

The word "be sure" in English means: To do something without any doubt; to make certain or take action to ensure something happens., Used to emphasize that you expect someone to do something..

The phonetic transcription of "be sure" is /biː ʃʊər/ in British English and /biː ʃʊr/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "be sure": ascertain, ensure, guarantee, definitely, make certain.

Example usage of "be sure": "Be sure to lock the door when you leave.". More examples on the page.