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.
–verb (used without object)
9.
to be obliged; be compelled: Do I have to go? I must, I suppose.
10.
Archaic. (sometimes used with ellipsis of go, get, or some similar verb readily understood from the context): We must away.
–adjective
11.
necessary; vital: A raincoat is must clothing in this area.
–noun
12.
something necessary, vital, or required: This law is a must.
[Origin: bef. 900; ME most(e), OE mōste (past tense); c. G musste.See mote2]
—Synonyms 1.Must,ought,should express necessity or duty. Must expresses necessity or compulsion: I must attend to those patients first. Soldiers must obey orders. Ought (weaker than must) expresses obligation, duty, desirability: You ought to tell your mother. Should expresses obligation, expectation, or probability: You are not behaving as you should. Children should be taught to speak the truth. They should arrive at one o'clock.
musth also mustAudio Help (mŭst) Pronunciation Key
n.
An annual period of heightened aggressiveness and sexual activity in male elephants, during which violent frenzies occur.
[Urdu mast, from Persian, drunk, from Middle Persian.]
O.E. moste, pt. of motan "have to, be able to," from P.Gmc. *motanan "to fix, allot, appoint, to have room, to be able" (cf. O.Fris. mota, M.L.G. moten, Du. moeten, Ger. müssen "to be obliged to," Goth. gamotan "to have room to, to be able to"), from PIE base *med- "to measure." Used as present tense from c.1300, from the custom of using past subjunctive as a moderate or polite form of the present. The noun meaning "something that has to be seen or experienced" is from 1892.
"male elephant frenzy," 1871, from Urdu mast "intoxicated, in rut," from Pers. mast, lit. "intoxicated," related to Skt. matta- "drunk, intoxicated," pp. of madati "boils, bubbles, gets drunk," from PIE base *mad- "wet, to drip."
used with another verb to express need Example: We must go to the shops to get milk.
Arabic:
يَجِب
Chinese (Simplified):
必须
Chinese (Traditional):
(與另一動詞連用﹐表示必須)
Czech:
muset
Danish:
måtte; skulle
Dutch:
moeten
Estonian:
pidama
Finnish:
täytyä
French:
devoir
German:
müssen
Greek:
πρέπει (να)
Hungarian:
kell; (tagadó alakban:) nem szabad
Icelandic:
verður, má til
Indonesian:
perlu
Italian:
dovere
Japanese:
～する必要がある
Latvian:
(izsaka nepieciešamību)
Lithuanian:
turėti, reikėti
Norwegian:
måtte
Polish:
musieć
Portuguese (Brazil):
precisar
Portuguese (Portugal):
ter de
Romanian:
a trebui
Russian:
нужно
Slovak:
musieť
Slovenian:
morati
Spanish:
deber, tener que
Swedish:
måste
Turkish:
…-meli, *-malı
must2[mast]verb
used, usually with another verb, to suggest a probability Example: They must be finding it very difficult to live in such a small house.
Arabic:
أكيد أن ، لا بُد أن
Chinese (Simplified):
很可能
Chinese (Traditional):
很可能
Czech:
muset
Danish:
måtte
Dutch:
moeten
Estonian:
arvatavasti
Finnish:
varmaankin
French:
devoir
German:
müssen (Konjunktiv)
Greek:
πρέπει (να), ασφαλώς (για να δηλώσει πιθανότητα)
Hungarian:
bizonyára…
Icelandic:
hlÿtur
Indonesian:
mungkin
Italian:
dovere
Japanese:
～にちがいない
Latvian:
(izsaka ticamu iespējamību)
Lithuanian:
tikriausiai
Norwegian:
måtte
Polish:
musieć
Portuguese (Brazil):
dever
Portuguese (Portugal):
dever
Romanian:
a trebui
Russian:
должно быть
Slovak:
musieť
Slovenian:
gotovo…
Spanish:
deber
Swedish:
måste
Turkish:
(herhâlde) …-meli, *malı
must3[mast]verb
used, usually with another verb, to express duty, an order, rule etc Example: You must come home before midnight; All competitors must be under 15 years of age.
Mot\ (m[=o]t), v. [Sing. pres. ind. Mot, Mote, Moot (m[=o]t), pl. Mot, Mote, Moote, pres. subj. Mote; imp. Moste.] [See Must, v.] [Obs.] May; must; might. He moot as well say one word as another --Chaucer. The wordes mote be cousin to the deed. --Chaucer. Men moot [i.e., one only] give silver to the poore freres. --Chaucer. So mote it be, so be it; amen; -- a phrase in some rituals, as that of the Freemasons.
Must\ (m[u^]st), v. i. or auxiliary. [OE. moste, a pret. generally meaning, could, was free to, pres. mot, moot, AS. m[=o]ste, pret. m[=o]t, pres.; akin to D. moetan to be obliged, OS. m[=o]tan to be free, to be obliged, OHG. muozan, G. m["u]ssen to be obliged, Sw. m[*a]ste must, Goth. gam[=o]tan to have place, have room, to able; of unknown origin.]1. 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. 2. 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. Likewise must the deacons be grave. --1 Tim. iii. 8. Morover, he [a bishop] must have a good report of them which are without. --1 Tim. iii. 7. Note: The principal verb, if easily supplied by the mind, was formerly often omitted when must was used; as, I must away. "I must to Coventry." --Shak.
Must\, n. [AS. must, fr. L. mustum (sc. vinum), from mustus young, new, fresh. Cf. Mustard.]1. The expressed juice of the grape, or other fruit, before fermentation. "These men ben full of must." --Wyclif (Acts ii. 13. ). No fermenting must fills . . . the deep vats. --Longfellow. 2. [Cf. Musty.] Mustiness.
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Audio Help [muhst] Pronunciation Key 
