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Meaning of MUST

Pronunciation:  must

WordNet Dictionary
  1. [v]  be obliged, required, or forced to; "She has to get her driver's license"
  2. [v]  be likely or probable; "They have to be kidding"
  3. [v]  be logically necessary

MUST is a 4 letter word that starts with M.


 Synonyms: have, have got, need, ought, should



Webster's 1913 Dictionary
  1. \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
    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.
             Morover, he [a bishop] must have a good report of
             them which are without.               --1 Tim. iii.
    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.
  2. \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.
    2. [Cf. {Musty}.] Mustiness.
  3. \Must\, v. t. & i.
    To make musty; to become musty.
  4. \Must\ (m[u^]st), n. [Hind. mast intoxicated, ruttish, fr.
    Skr. matta, p.p. of mad to rejoice, intoxicate.] (Zo["o]l.)
    Being in a condition of dangerous frenzy, usually connected
    with sexual excitement; -- said of adult male elephants which
    become so at irregular intervals. -- n.
    (a) The condition of frenzy.
    (b) An elephant in must.
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