must

must ¹  (mst)

v.

v.aux.

1. 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 live.

3. Used to express a command or admonition: You must not go there alone. You simply must be careful.

4. To be determined to; have as a fixed resolve: If you must leave, do it quietly.

5.

a. Used to indicate inevitability or certainty: We all must die.

b. Used to indicate logical probability or presumptive certainty: If the lights were on, they must have been at home.

v.intr. Archaic

To be required or obliged to go: "I must from hence" Shakespeare.

n.

Something that is absolutely required or indispensable: Promptness on the job is a must. Comfortable boots are a must when going on a hike.

---

[Middle English moste, from Old English mste, past tense of mtan, to be allowed; see med- in Indo-European roots.]

---

must ²  (mst)

n.

The quality or condition of being stale or musty.

---

[Probably back-formation from musty.]

---

must ³  (mst)

n.

The unfermented or fermenting juice expressed from fruit, especially grapes.

---

[Middle English, from Old English, from Latin mustum, from neuter of mustus, new, fresh.]

---

must ⁴  (mst)

n.

Variant of musth.

---

must ¹

Verb

1. used as an auxiliary to express or indicate the need or necessity to do something: I must go to the shops

2. used as an auxiliary to express or indicate obligation or requirement: you must not smoke in here

3. used as an auxiliary to express or indicate the probable correctness of a statement: he must be finished by now

4. used as an auxiliary to express or indicate inevitability: all good things must come to an end

5. used as an auxiliary to express or indicate determination: I must try and finish this

6. used as an auxiliary to express or indicate conviction or certainty on the part of the speaker: you must be kidding!

Noun

an essential or necessary thing: strong boots are a must for hill walking [Old English mōste, past tense of mōtan to be allowed or obliged]

---

must ²

Noun

the pressed juice of grapes or other fruit ready for fermentation [Latin mustum new wine]

Thesaurus

Noun	1.	must - a necessary or essential thing; "seat belts are an absolute must" essential, necessary, requisite, necessity, requirement - anything indispensable; "food and shelter are necessities of life"; "the essentials of the good life"; "allow farmers to buy their requirements under favorable conditions"; "a place where the requisites of water fuel and fodder can be obtained"
	2.	must - grape juice before or during fermentation grape juice - the juice of grapes
	3.	must - the quality of smelling or tasting old or stale or mouldy moldiness, mustiness staleness - having lost purity and freshness as a consequence of aging
Adj.	1.	must - highly recommended; "a book that is must reading" essential - basic and fundamental; "the essential feature"

---

must ¹

noun necessity, essential, requirement, duty, fundamental, obligation, imperative, requisite, prerequisite, sine qua non (Latin) necessary thing, must-have

---

must ²

noun mould, rot, decay, mildew, mustiness, fustiness, fetor, mouldiness

Translations

must [mʌst] aux vb (obligation): I must do it → debo hacerlo, tengo que hacerlo;

(probability): he must be there by now → ya debe (de) estar allí

n it's a must → es imprescindible

---

must [mʌst] aux vb (obligation);

I must do it → je dois le faire, il faut que je le fasse;

(probability);

he must be there by now → il doit y être maintenant, il y est probablement maintenant;

(suggestion, invitation);

you must come and see me → il faut que vous veniez me voir n → nécessité f, impératif m;

it's a must → c'est indispensable;

I must have made a mistake → j'ai dû me tromper

---

must [mʌst] aux vb → müssen;

(in negative) → dürfen

n → Muss nt;

I must do it → ich muss es tun;

you must not do that → das darfst du nicht tun;

he must be there by now → jetzt müsste er schon dort sein;

you must come and see me soon → Sie müssen mich bald besuchen;

why must he behave so badly? → warum muss er sich so schlecht benehmen?;

I must have made a mistake → ich muss mich geirrt haben;

the film is a must → den Film muss man unbedingt gesehen haben

---

must [mʌst] aux vb (obligation): I must do it → devo farlo;

(probability): he must be there by now → dovrebbe essere arrivato ormai;

I must have made a mistake → devo essermi sbagliato n this programme/trip is a must → è un programma/viaggio da non perdersi