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  1. MUST Definition & Meaning - Merriam-Webster

    The meaning of MUST is be commanded or requested to. How to use must in a sentence.

  2. MUST | English meaning - Cambridge Dictionary

    We usually use must to talk about obligations which come from the speaker and we generally use have (got) to when we refer to obligations that come from outside the speaker. …

  3. Must - definition of must by The Free Dictionary

    To be obliged or required by morality, law, or custom: Citizens must register in order to vote. 2. To be compelled, as by a physical necessity or requirement: Plants must have oxygen in order to …

  4. MUST definition and meaning | Collins English Dictionary

    Must is a modal verb. It is followed by the base form of a verb. You use must to indicate that you think it is very important or necessary for something to happen. You use must not or mustn't to …

  5. Must | Learn English Modal Verbs | English Grammar Lesson by ...

    Aug 12, 2025 · Have to is a more informal while Must is mostly used in written orders or instructions. Also, Must expresses obligation imposed by the speaker while Have to expresses …

  6. Must Definition - English Grammar and Usage Key Term | Fiveable

    The word 'must' is a modal verb used to express necessity or obligation. It indicates that something is required or essential, often reflecting strong certainty or a sense of duty.

  7. Modal Verb MUST - My Lingua Academy

    Jun 19, 2023 · Today, we’re going to explore one of the modal verb must. You’ll learn how and when to use it, how it differs from have to, and what common mistakes to avoid.