must: Meaning and Definition of

must

1. to be obliged or bound to by an imperative requirement: I must keep my word.
2. to be under the necessity to; need to: Animals must eat to live.
3. to be required or compelled to, as by the use or threat of force: You must obey the law.
4. to be compelled to in order to fulfill some need or achieve an aim: We must hurry if we're to arrive on time.
5. to be forced to, as by convention or the requirements of honesty: I must say, that is a lovely hat.
6. to be or feel urged to; ought to: I must buy that book.
7. to be reasonably expected to; is bound to: It must have stopped raining by now. She must be at least 60.
8. to be inevitably certain to; be compelled by nature: Everyone must die.

1. to be obliged; be compelled: Do I have to go? I must, I suppose.
2. (sometimes used with ellipsis of go, get, or some similar verb readily understood from the context): We must away.

1. necessary; vital: A raincoat is must clothing in this area.

1. something necessary, vital, or required: This law is a must.

must

1. new wine; the unfermented juice as pressed from the grape or other fruit.

must

1. mold; moldiness; mustiness: a castle harboring the must of centuries.

must

1. musth.

must

1. musk, esp. a powder made from musk.

1. to powder (the hair).