must

verb
UK: /mʌst/
US: /mʌst/

  1. Used to say that something is necessary or very important

    1. I must go now, it's getting late I must hurry. [ ] [ ]
    2. You must remember to take your medicine it is very important for you. [ ] [ ]

  2. Used to say that you are sure or certain about something

    1. That must be John at the door because he always comes at 6. [ ] [ ]
    2. She must be very tired after working a lot. [ ] [ ]

  3. Used to express advice or a strong recommendation

    1. You must see this movie because it's very interesting and funny. [ ] [ ]
    2. Before going to sleep you must complete your tasks. [ ] [ ]

Synonyms

essential have to necessity requirement should
must noun

  1. Something that is necessary or essential

    1. Sunscreen is a must if you are going to the beach for a long time. [ ] [ ]
    2. A good attitude is a must for succeeding in this company position. [ ] [ ]

Frequently Asked Questions

The word "must" in English means: Used to say that something is necessary or very important, Used to say that you are sure or certain about something, Used to express advice or a strong recommendation.

The phonetic transcription of "must" is /mʌst/ in British English and /mʌst/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "must": essential, have to, necessity, requirement, should.

Example usage of "must": "I must go now, it's getting late I must hurry.". More examples on the page.