The Collaborative International Dictionary of English v.0.48:

Charm \Charm\, v. i.
   1. To use magic arts or occult power; to make use of charms.
      [1913 Webster]

            The voice of charmers, charming never so wisely.
                                                  --Ps. lviii.
                                                  5.
      [1913 Webster]

   2. To act as, or produce the effect of, a charm; to please
      greatly; to be fascinating.
      [1913 Webster]

   3. To make a musical sound. [Obs.] --Milton.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Charm \Charm\, v. t. [imp. & p. p. Charmed; p. pr. & vb. n.
   Charming.] [Cf. F. charmer. See Charm, n.]
   1. To make music upon; to tune. [Obs. & R.]
      [1913 Webster]

            Here we our slender pipes may safely charm.
                                                  --Spenser.
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   2. To subdue, control, or summon by incantation or
      supernatural influence; to affect by magic.
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            No witchcraft charm thee!             --Shak.
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   3. To subdue or overcome by some secret power, or by that
      which gives pleasure; to allay; to soothe.
      [1913 Webster]

            Music the fiercest grief can charm.   --Pope.
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   4. To attract irresistibly; to delight exceedingly; to
      enchant; to fascinate.
      [1913 Webster]

            They, on their mirth and dance
            Intent, with jocund music charm his ear. --Milton.
      [1913 Webster]

   5. To protect with, or make invulnerable by, spells, charms,
      or supernatural influences; as, a charmed life.
      [1913 Webster]

            I, in my own woe charmed,
            Could not find death.                 --Shak.

   Syn: Syn. - To fascinate; enchant; enrapture; captivate;
        bewitch; allure; subdue; delight; entice; transport.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Charm \Charm\ (ch[aum]rm), n. [F. charme, fr. L. carmen song,
   verse, incantation, for casmen, akin to Skr. [,c]asman,
   [,c]as[=a], a laudatory song, from a root signifying to
   praise, to sing.]
   1. A melody; a song. [Obs.]
      [1913 Webster]

            With charm of earliest birds.         --Milton.
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            Free liberty to chant our charms at will. --Spenser.
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   2. A word or combination of words sung or spoken in the
      practice of magic; a magical combination of words,
      characters, etc.; an incantation.
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            My high charms work.                  --Shak.
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   3. That which exerts an irresistible power to please and
      attract; that which fascinates; any alluring quality.
      [1913 Webster]

            Charms strike the sight, but merit wins the soul.
                                                  --Pope.
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            The charm of beauty's powerful glance. --Milton.
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   4. Anything worn for its supposed efficacy to the wearer in
      averting ill or securing good fortune.
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   5. Any small decorative object worn on the person, as a seal,
      a key, a silver whistle, or the like. Bunches of charms
      are often worn at the watch chain.
      [1913 Webster]

   6. (Physics) a property of certain quarks which may take the
      value of +1, -1 or 0.
      [PJC]

   Syn: Spell; incantation; conjuration; enchantment;
        fascination; attraction.
        [1913 Webster]

WordNet (r) 3.0 (2006):

charm
    n 1: attractiveness that interests or pleases or stimulates;
         "his smile was part of his appeal to her" [syn: appeal,
         appealingness, charm]
    2: a verbal formula believed to have magical force; "he
       whispered a spell as he moved his hands"; "inscribed around
       its base is a charm in Balinese" [syn: spell, magic
       spell, magical spell, charm]
    3: something believed to bring good luck [syn: charm, good
       luck charm]
    4: (physics) one of the six flavors of quark
    v 1: attract; cause to be enamored; "She captured all the men's
         hearts" [syn: capture, enamour, trance, catch,
         becharm, enamor, captivate, beguile, charm,
         fascinate, bewitch, entrance, enchant]
    2: control by magic spells, as by practicing witchcraft [syn:
       charm, becharm]
    3: protect through supernatural powers or charms
    4: induce into action by using one's charm; "She charmed him
       into giving her all his money" [syn: charm, influence,
       tempt]

The Free On-line Dictionary of Computing (19 January 2023):

CHARM

    An explicitly parallel programming language based
   on C, for both shared and nonshared MIMD computers.

   (ftp://a.cs.uiuc.edu/pub/CHARM).

   Mailing list: .

   ["The CHARM(3.2) Programming Language Manual", UIUC, Dec
   1992].

   (2006-04-29)