What is "jam"

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.

Jam nut. See Check nut, under Check.

Jam weld (Forging), a butt weld. See under Butt.

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.]

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.

   The ship . . . jammed in between two rocks.
   --De Foe.

2. To crush or bruise; as, to jam a finger in the crack of a door. [Colloq.]

3. (Naut.) To bring (a vessel) so close to the wind that half her upper sails are laid aback.
   --W. C. Russell.

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

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.

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.

Jam \Jam\, n. (Mining) See Jamb.

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

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.

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

3. A difficult situation; as, he got himself into a jam.

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

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

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

"to press tightly," also "to become wedged," 1706, of unknown origin, perhaps a variant of champ (v.). Of a malfunction in the moving parts of machinery, by 1851. Sense of "cause interference in radio signals" is from 1914. Related: Jammed; jamming. The adverb is recorded from 1825, from the verb.

"fruit preserve," 1730s, probably a special use of jam (v.) with a sense of "crush fruit into a preserve."

"a tight pressing between two surfaces," 1806, from jam (v.). Jazz meaning "short, free improvised passage performed by the whole band" dates from 1929, and yielded jam session (1933); but this is perhaps from jam (n.1) in sense of "something sweet, something excellent." Sense of "machine blockage" is from 1890, which probably led to the colloquial meaning "predicament, tight spot," first recorded 1914. \n

Etymology 1 n. 1 A sweet mixture of fruit boiled with sugar and allowed to congeal. Often spread on bread or toast or used in jam tarts. 2 (context countable English) A difficult situation. 3 (context countable English) blockage, congestion. 4 (context countable popular music English) An informal, impromptu performance or rehearsal. 5 (context countable baseball English) A difficult situation for a pitcher or defending team. 6 (context countable basketball English) A forceful dunk. 7 (context countable roller derby English) A play during which points can be scored. 8 (context climbing countable English) Any of several maneuvers requiring wedging of an extremity into a tight space. 9 (context UK English) luck. vb. 1 To get something stuck in a confined space. 2 To brusquely force something into a space; cram, squeeze. 3 To cause congestion or blockage. Often used with "up" 4 To block or confuse a broadcast signal. 5 (context baseball English) To throw a pitch at or near the batter hands. 6 (context music English) To play music (especially improvisation as a group, or an informal unrehearsed session). 7 To injure a finger or toe by sudden compression of the digit's tip. 8 (context roller derby English) To attempt to score points. 9 (context nautical English) To bring (a vessel) so close to the wind that half her upper sails are laid aback. 10 (label en Canadian informal) To give up on a date or some joint endeavour; stand up, chicken out, jam out. Etymology 2

n. (context dated English) A kind of frock for children. Etymology 3

n. (context mining English) (alternative form of jamb English)

1. n. preserve of crushed fruit

2. informal terms for a difficult situation; "he got into a terrible fix"; "he made a muddle of his marriage" [syn: fix, hole, mess, muddle, pickle, kettle of fish]

3. a dense crowd of people [syn: crush, press]

4. deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems [syn: jamming, electronic jamming]

5. [also: jamming, jammed]

1. v. press tightly together or cram; "The crowd packed the auditorium" [syn: throng, mob, pack, pile]

2. push down forcibly; "The driver jammed the brake pedal to the floor"

3. crush or bruise; "jam a toe" [syn: crush]

4. interfere with or prevent the reception of signals; "Jam the Voice of America"; "block the signals emitted by this station" [syn: block]

5. get stuck and immobilized; "the mechanism jammed"

6. crowd or pack to capacity; "the theater was jampacked" [syn: jampack, ram, chock up, cram, wad]

7. block passage through; "obstruct the path" [syn: obstruct, obturate, impede, occlude, block, close up] [ant: free]

8. [also: jamming, jammed]

Jam is a type of fruit preserves.

Jam may also refer to:

Jam is the third studio album by British rock band Little Angels. It peaked at number one in the UK Albums Chart in 1993. It set a record for the shortest chart stay by a chart-topping album, climbing to the top and dropping off the bottom in just five weeks. The album features the band's biggest hit, "Womankind", which peaked at no. 12 during a five-week stay in the UK charts. The single "Too Much Too Young" features Canadian singer Bryan Adams on backup vocals, and also became a significant hit for the group, reaching no. 22. "Soap Box" and "Sail Away" were lesser hits, peaking at no. 33 and no. 45 respectively.

"Jam (Turn It Up)" is a song by American television personality Kim Kardashian. The song features background vocals by singer-songwriter and record producer The-Dream. The song was released to iTunes on March 2, 2011, and half of the proceeds from the sales of the song are being donated to St. Jude Children's Research Hospital. Shortly after the song's release, Kardashian confirmed that she had no plans to put out a full-length album any time soon. Years later, she also admitted that she regretted recording the song.

Jam is a British dark sketch comedy TV series created, written and directed by Chris Morris, and was broadcast on Channel 4 during March and April 2000. It was based on the earlier BBC Radio 1 show Blue Jam, and consists of a series of unsettling sketches unfolding over an ambient soundtrack. Many of the sketches re-used the original radio soundtracks with the actors lip-synching their lines, an unusual technique which added to the programme's unsettling atmosphere. The cast, which comprised people who Morris had worked with on his earlier TV work such as The Day Today and Brass Eye, included Amelia Bullmore, David Cann, Julia Davis, the actor Kevin Eldon and Mark Heap, as well as occasional appearances from Morris himself. It was co-written by Peter Baynham, with additional material contributed by Jane Bussmann, David Quantick, Graham Linehan, Arthur Mathews and the cast.

The series received a mixed response from reviewers, and, like Brass Eye, attracted controversy over some of its content.

"Jam" is a song by Michael Jackson. The song is the fourth single from his 1991 album Dangerous. It appears as track one on Dangerous and track two on his 2009 This Is It compilation album. The single was re-released in 2006 as part of Jackson's Visionary: The Video Singles collection and it was remixed to the Cirque du Soleil's Immortal World Tour, releasing that remix on the soundtrack album. "Jam" is a new jack swing song whose bridge features a rap performed by Heavy D (of the group Heavy D & the Boyz). The music video of the song featured NBA legend Michael Jordan (the other "MJ"). The song was also featured on the Chicago Bulls'—Jordan's team at that time—1992 NBA Championship video "Untouchabulls" and was also used in many promotional ads of the NBA in the said season. Despite this heavy form of promotion, the single only reached #26 in the United States. The song re-entered the UK charts in 2006, reaching number 22.

Jam (or Jam: When Lives Collide) is a 2006 drama film directed by Craig E. Serling. Written by Serling and Nicole Lonner, the film was executive produced by Dianne Burnett for Burnett Entertainment in association with Thanksgiving Films. As Serling's first feature length project, Jam is based upon a short film by the same name that Serling shot in 2004. Starring Elizabeth Bogush, Dan Byrd, Julie Claire, and David DeLuise, Jam premiered at the Vail Film Festival on April 1, 2006, aired on television on the Starz! TV channel, and was released on DVD on July 3, 2007, by the Starz! distribution branch of Anchor Bay Entertainment.

Jam (Sindhi: جام, Urdu: جام , Hindi: जाम) is the title given to the leader of royal family of a Samma/ Jadeja tribe, This title use as leader of Jadeja/Samma. Now its use for Jadeja/Samma Kshatriya and Samma Isami rulers.

Jam is a science-fiction post-apocalyptic young adult novel by British-Australian video-game critic Ben "Yahtzee" Croshaw. It is his second published novel after Mogworld in 2010.

The concept for the novel can be seen in his weekly Zero Punctuation review of the survival horror game Dead Island where he says that people would not be able to cope if civilization ends in any other way than a zombie apocalypse.