must

v. have to, be obligated; be likely or probable

n. necessity, obligation, need; new wine, grape juice that has not yet fermented, stum

Must is freshly pressed grape juice, that contains various quantities of pulp, skins, stems, and seeds, called pomace or grape solids, which typically comprise between 7–23 percent of the total weight of the must. These components, and the time they are allowed to be in contact with the juice, are critical to the final character of the wine.
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The Military Intelligence and Security Service (Militära underrättelse- och säkerhetstjänsten) is the Swedish external intelligence agency. Militära underrättelse- och säkerhetstjänsten, MUST, works with presenting information for the supreme commander of the Swedish Armed Forces, the Headquarter of the Armed Forces and also other commanders in the Swedish Armed Forces. MUST cooporates with the Swedish defence and foreign ministries. Their primary responsibility is all of the secret services in the armed forces and also the signals intelligence office. To assist MUST, FRA (the Swedish national authority for signals intelligence), among other agencies, are available. The most secret part of MUST is KSI, Kontoret för Särskild Inhämtning ("Office for Special Assignments").
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Noun
1. a necessary or essential thing; "seat belts are an absolute must"
(hypernym) necessity, essential, requirement, requisite, necessary
2. grape juice before or during fermentation
(hypernym) grape juice
3. the quality of smelling or tasting old or stale or mouldy
(synonym) mustiness, moldiness
(hypernym) staleness
Adjective
1. highly recommended; "a book that is must reading"
(synonym) must(a)
(similar) essential

(v. t. & i.)
To make musty; to become musty.
  

(v. i. / auxiliary)
To be obliged; to be necessitated; -- expressing either physical or moral necessity; as, a man must eat for nourishment; we must submit to the laws.
  

(v. i. / auxiliary)
To be morally required; to be necessary or essential to a certain quality, character, end, or result; as, he must reconsider the matter; he must have been insane.
  

(n.)
The expressed juice of the grape, or other fruit, before fermentation.
  

(n.)
Mustiness.
  

must