jam


From The Collaborative International Dictionary of English v.0.48:

Jam \Jam\, n.
   1. A mass of people or objects crowded together; also, the
      pressure from a crowd; a crush; as, a jam in a street; a
      jam of logs in a river.
      [1913 Webster]

   2. An injury caused by jamming. [Colloq.]
      [1913 Webster]

   3. A difficult situation; as, he got himself into a jam.
      [informal]
      [PJC]
.

From The Collaborative International Dictionary of English v.0.48:

Jam \Jam\, n. [Prob. fr. jam, v.; but cf. also Ar. jamad ice,
   jelly, j[=a]mid congealed, jamd congelation, ice.]
   A preserve of fruit boiled with sugar and water; also called
   jelly; as, raspberry jam; currant jam; grape jam.
   [1913 Webster]

   Jam nut. See Check nut, under Check.

   Jam weld (Forging), a butt weld. See under Butt.
      [1913 Webster]
.

From The Collaborative International Dictionary of English v.0.48:

Jam \Jam\ (j[a^]m), n. [Per. or Hind. j[=a]mah garment, robe.]
   A kind of frock for children.
   [1913 Webster]
.

From The Collaborative International Dictionary of English v.0.48:

Jam \Jam\, n. (Mining)
   See Jamb.
   [1913 Webster]
.

From The Collaborative International Dictionary of English v.0.48:

Jam \Jam\, v. t. [imp. & p. p. Jammed (j[a^]md); p. pr. & vb.
   n. Jamming.] [Either fr. jamb, as if squeezed between
   jambs, or more likely from the same source as champ See
   Champ.]
   [1913 Webster]
   1. To press into a close or tight position; to crowd; to
      squeeze; to wedge in; to cram; as, rock fans jammed the
      theater for the concert.
      [1913 Webster]

            The ship . . . jammed in between two rocks. --De
                                                  Foe.
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   2. To crush or bruise; as, to jam a finger in the crack of a
      door. [Colloq.]
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   3. (Naut.) To bring (a vessel) so close to the wind that half
      her upper sails are laid aback. --W. C. Russell.
      [1913 Webster]

   4. To block or obstruct by packing too much (people or
      objects) into; as, shoppers jammed the aisles during the
      fire sale.
      [PJC]

   5. (Radio) To interfere with (a radio signal) by sending
      other signals of the same or nearby frequency; as, the
      Soviets jammed Radio Free Europe broadcasts for years
      during the cold war.
      [PJC]

   6. To cause to become nonfunctional by putting something in
      that blocks the movement of a part or parts; as, he jammed
      the drawer by putting in too many loose papers; he jammed
      the lock by trying to pick it.
      [PJC]
.

From The Collaborative International Dictionary of English v.0.48:

Jam \Jam\, v. i.
   2. To become stuck so as not to function; as, the copier
      jammed again.
      [PJC]

   2. (Music) To play an instrument in a jam session.
      [PJC]

   3. To crowd together; -- usually used with together or in;
      as, fifty people jammed into a conference room designed
      for twenty.
      [PJC]
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