English Reference
noun · verb

jam

n. · v.
US /ˈdʒæm/ UK /dʒˈæm/ jam UK spelling jams

  1. 01 A2 Elementary Cooking

    n.a sweet food made by boiling fruit with sugar, usually eaten on bread.

    n.a preserve made from whole fruit or pieces of fruit boiled with sugar until it reaches a gel-like consistency.

    Simple

    He spread some strawberry jam on his toast before leaving for work.

    In context

    The artisanal bakery specializes in small-batch apricot jam made from locally sourced organic fruit.

  2. 02 A2 Elementary

    n.a situation where a lot of people or vehicles are stuck and cannot move.

    n.a state of congestion or immobilization, particularly within a transport network or mechanical system.

    Simple

    We were late for the wedding because of a massive traffic jam on the highway.

    In context

    A paper jam in the industrial printer halted production for three hours while technicians disassembled the feeding mechanism.

  3. 03 B2 Upper Intermediate Informal

    n.a difficult or embarrassing situation that is hard to get out of.

    n.a predicament or difficult situation requiring cleverness or luck to resolve.

    Simple

    I'm in a bit of a jam because I forgot my wallet at home.

    In context

    The diplomat found himself in a political jam when his private comments were leaked to the international press.

  4. 04 B1 Intermediate Informal Music

    n.an informal time when musicians play together without practicing first.

    n.an informal, often impromptu musical performance or rehearsal characterized by improvisation.

    Simple

    The band had a great jam in the garage last night.

    In context

    What started as a quiet acoustic jam evolved into a three-hour experimental set involving several guest artists from the local jazz scene.

  5. 05 B1 Intermediate

    v.to push something into a small space with force.

    v.to force or wedge something into a confined space; to cram.

    Simple

    He tried to jam all his clothes into one small suitcase.

    In context

    Commuters attempted to jam themselves into the crowded train carriage before the doors slid shut.

  6. 06 B1 Intermediate

    v.to become stuck so that it cannot move or work properly.

    v.to become wedged or stuck, rendering a mechanism or object immobile.

    Simple

    The key jammed in the lock and I couldn't turn it.

    In context

    The machine's gears jammed after a small piece of debris fell into the internal housing during the night shift.

  7. 07 C1 Advanced Technical Science

    v.to stop a radio or phone signal from working by using another signal.

    v.to make a radio or radar signal unintelligible by transmitting a stronger signal on the same frequency.

    Simple

    The rebels tried to jam the government's radio broadcasts.

    In context

    Sophisticated electronic warfare units were deployed to jam enemy communications during the initial phase of the operation.

  8. 08 B1 Intermediate Informal Music

    v.to play music with other people in an informal way, often making it up as you go.

    v.to participate in an improvised musical session, typically without a written score.

    Simple

    We spent the whole afternoon jamming in the basement.

    In context

    The guitarists spent the evening jamming over a simple blues progression, testing out new pedals and amplifiers.

    improvisebusk
This entry
Level A2 · Elementary
Frequency Common
Updated