Jam Definition

jăm
jammed, jamming, jams
verb
jammed, jamming, jams
To drive or wedge forcibly into a tight position.
Jammed the cork in the bottle.
American Heritage
To activate or apply (a brake) suddenly. Often used with on:
Jammed the brakes on.
American Heritage
To cause (moving parts, for example) to lock into an unworkable position.
Jammed the typewriter keys.
American Heritage
To squeeze or wedge into or through a confined space.
Webster's New World
To force (a thumb, toe, etc.) back against its joint so as to cause impaction.
Webster's New World
noun
jams
A jamming or being jammed.
Webster's New World
A crush or congestion of people or things in a limited space.
A traffic jam.
American Heritage
A group of persons or things so close together as to jam a passageway, etc.
A traffic jam.
Webster's New World
A difficult situation; predicament.
Webster's New World
Webster's New World
Antonyms:
abbreviation
Jamaica.
Webster's New World
pronoun

(biblical) Abbreviation of James.

Wiktionary

(law) Abbreviation of Jamaica.

Wiktionary

Other Word Forms of Jam

Noun

Singular:
jam
Plural:
jams

Origin of Jam

  • Persian or Hindi, meaning "garment, robe"; related to pajamas.

    From Wiktionary

  • Possibly from jam

    From American Heritage Dictionary of the English Language, 5th Edition

  • Origin unknown

    From American Heritage Dictionary of the English Language, 5th Edition

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