jam

noun (1)
\ ˈjam \

Definition of jam 

(Entry 1 of 4)

: a food made by boiling fruit and sugar to a thick consistency

jam

verb
jammed; jamming

Definition of jam (Entry 2 of 4)

intransitive verb

1a : to become blocked, wedged, or stuck fast The line jammed and the boat hung useless.

b : to become unworkable when a movable part becomes blocked or stuck the gun jammed

2 : to force one's way into a restricted space People continued to jam into the already crowded hall.

3 : to improvise on a musical instrument with a group : to take part in a jam session musicians jamming together

4 basketball : dunk sense 2

transitive verb

1a : to press into a close or tight position jammed his hat on

b(1) : to cause to become wedged or stuck so as to be unworkable jam the typewriter keys

(2) : to make (machinery) unworkable by becoming wedged or stuck The paper jammed the printer.

c : to block passage of : obstruct traffic jammed by an accident

d : to fill often to excess : pack the crowd jammed the theater

2 : to push forcibly jammed the shovel into the ground especially : to apply (brakes) suddenly and forcibly used with on suddenly jammed on the brakes

3 : to cause (a part of the body) to be painfully crushed or squeezed jammed his finger in the door

4a : to make unintelligible by sending out interfering signals or messages jam a radio broadcast

b : to make (a radar apparatus) ineffective by sending out interfering signals or by causing reflection of radar waves trying to jam the enemy's radar

5 football : to block, crowd, or bump (a pass receiver) near the line of scrimmage The receiver got jammed at the line.

6 baseball : to pitch inside to (a batter) jammed him with a fastball

jam

noun (2)

Definition of jam (Entry 3 of 4)

1a : a crowded mass that impedes or blocks movement a traffic jam

b : an act or instance of becoming blocked or jammed (see jam entry 2) paper causing a jam of the copier

2a : the quality or state of being blocked, stopped, or jammed the jam of the legislature caused by the piling up of new bills in the final days

b : the pressure or congestion of a crowd : crush a jam of people

3 : a difficult situation or state of affairs : fix got into a jam

5 basketball : dunk shot

6 slang : a musical piece

Definition of Jam (Entry 4 of 4)

Jamaica

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Other words from jam

Noun (1)

jammy \ˈja-mē \ adjective

Verb

jammer \ˈja-mər \ noun

Synonyms & Antonyms for jam

Synonyms: Verb

brim, charge, cram, fill, heap, jam-pack, load, pack, stuff

Antonyms: Verb

clear, empty, evacuate, vacate, void

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Examples of jam in a Sentence

Verb

Thousands of people jammed into the hall. People were jamming the exits after the concert. He jammed the book back into the bookcase. She jammed her foot down hard on the brakes. She jammed on the brakes. A piece of paper jammed the copy machine.
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First Known Use of jam

Noun (1)

circa 1736, in the meaning defined above

Verb

1706, in the meaning defined at intransitive sense 1a

Noun (2)

1805, in the meaning defined at sense 1b

History and Etymology for jam

Noun (1)

probably from jam entry 2

Verb

origin unknown

Noun (2)

see jam entry 2

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Dictionary Entries near jam

jalousied

jalpaite

Jaluit

jam

Jam

jamadar

Jamaica

Statistics for jam

Look-up Popularity

Time Traveler for jam

The first known use of jam was in 1706

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More Definitions for jam

jam

verb

English Language Learners Definition of jam

: to fill (a place) completely

: to fill (something, such as a door or a road) so that movement is slow or stopped

: to press or push (an object) into a tight place

jam

verb
\ ˈjam \
jammed; jamming

Kids Definition of jam

 (Entry 1 of 3)

1 : to crowd, squeeze, or wedge into a tight position Fans jammed the auditorium.

2 : to put into action hard or suddenly He jammed his hands into his pockets. She jammed on the brakes.

3 : to hurt by pressure I jammed a finger in the car door.

4 : to be or cause to be stuck or unable to work because a part is wedged tight Paper jammed the copier.

5 : to cause interference in (radio or television signals)

jam

noun

Kids Definition of jam (Entry 2 of 3)

: a food made by boiling fruit with sugar until it is thick

jam

noun

Kids Definition of jam (Entry 3 of 3)

1 : a crowded mass of people or things that blocks something a traffic jam

2 : a difficult situation I got myself into a jam.

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Comments on jam

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occurring twice a year or every two years

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