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Synonyms

jar

1 American  
[jahr] / dʒɑr /

noun

  1. a broad-mouthed container, usually cylindrical and of glass or earthenware.

    a cookie jar.

  2. the quantity such a container can or does hold.


jar 2 American  
[jahr] / dʒɑr /

verb (used without object)

jars, present (3rd person singular) jarred, past participle, past jarring present participle
  1. to have a harshly unpleasant or perturbing effect on one's nerves, feelings, thoughts, etc..

    The sound of the alarm jarred.

  2. to produce a harsh, grating sound; sound discordantly.

  3. to vibrate audibly; rattle.

    The window jarred in the frame.

  4. to vibrate or shake.

  5. to conflict, clash, or disagree.


verb (used with object)

jars, present (3rd person singular) jarred, past participle, past jarring present participle
  1. to cause to rattle or shake.

  2. to have a sudden and unpleasant effect upon (the feelings, nerves, etc.).

    The burglary violently jarred their sense of security.

  3. to cause to sound harshly or discordantly.

noun

  1. a jolt or shake; a vibrating movement, as from concussion.

  2. a sudden unpleasant effect upon the mind or feelings; shock.

  3. a harsh, grating sound.

  4. a discordant sound or combination of sounds.

  5. a quarrel or disagreement, especially a minor one.

jar 3 American  
[jahr] / dʒɑr /

noun

  1. a turn or turning.


idioms

  1. on the jar, partly opened; ajar.

    The window was on the jar.

jar 1 British  
/ dʒɑː /

verb

  1. to vibrate or cause to vibrate

  2. to make or cause to make a harsh discordant sound

  3. (often foll by on) to have a disturbing or painful effect (on the nerves, mind, etc)

  4. (intr) to disagree; clash

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a jolt or shock

  2. a harsh discordant sound

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
jar 2 British  
/ dʒɑː /

noun

  1. a wide-mouthed container that is usually cylindrical, made of glass or earthenware, and without handles

  2. Also: jarful.  the contents or quantity contained in a jar

  3. informal a glass of alcoholic drink, esp beer

    to have a jar with someone

  4. obsolete a measure of electrical capacitance

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

jar 3 British  
/ dʒɑː /

noun

  1. (of a door) slightly open; ajar

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of jar1

First recorded in 1585–95; Middle English jarre “liquid measure smaller than a barrel,” possibly from Old French jarre, from Spanish or Portuguese jarra, jarro “a jar, pitcher,” or from Medieval Latin jarra, from Old Provençal jarra, from Arabic jarrah “earthen water vessel”

Origin of jar2

First recorded in 1520–30; probably imitative; cf. chirr

Origin of jar3

First recorded in 1665–75; variant of char 3; cf. ajar 2

Explanation

A jar is a smooth-sided, round container that's often made of glass. Jars are useful for storing food, from rice to tea bags to cookies. A wide-mouth jar made of pottery might hold Oreos, and a small, short jar could contain homemade jam. When you put something in a jar, you jar it. Another way to use the verb version of jar is to mean "shock painfully or unpleasantly:" "Every bump we drove over in the old Jeep would jar my whole body." The jar that's a container probably stems from the Middle French jarre, "liquid measure."

Keep Reading on Vocabulary.com

Vocabulary lists containing jar

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Richard Thomas came out carrying venison and beef sausage, banana nut bread, a dog toy and a jar of apple maple bacon jam.

From The Wall Street Journal Jul. 9, 2026

It’s a 12th century Qingbai ware prunus vase, a meiping jar.

From Los Angeles Times Jun. 17, 2026

And this is just a really perfect opportunity with the Talavera jar.

From Los Angeles Times Jun. 17, 2026

By the time you reach the bottom of the jar, what’s left isn’t waste at all.

From Salon Jun. 11, 2026

I put the jar back by the henhouse.

From "Unusual Chickens for the Exceptional Poultry Farmer" by Kelly Jones

The walls carry bottles, cans, jars, and echo hushed conversation.

From Salon Jun. 23, 2026

Whey protein powder used to be a niche supplement sold in big jars to fitness mega-enthusiasts.

From MarketWatch Jun. 11, 2026

Ms. Butterly accomplishes the feat of making “ceramics” become “sculpture” without the usual method of constructing giant jars with impossibly minuscule openings and jazzily geometric surface decoration.

From The Wall Street Journal Jun. 10, 2026

These small mesh tents cover less than a square meter of ground and funnel emerging insects into glass jars.

From Science Daily May 28, 2026

I washed the empty glass jars Mama’s customers brought back, and Jay dried them.

From "Root Magic" by Eden Royce

I’ve happily sung the praises of jarred garlic and frozen ginger cubes.

From Salon Jul. 4, 2026

Scientists, jarred by Beecher’s findings, grew more invested in ruling out the possibility that a drug’s effects were due to placebo.

From Slate Jan. 30, 2026

The lack of clarity raises the prospect that the chaos of the past few days, which jarred markets and stress tested trans-Atlantic diplomacy, could return in the near future.

From The Wall Street Journal Jan. 22, 2026

Nacua, who scored back-to-back touchdowns early in the game, suddenly became a defender and jarred the ball loose before Scott could secure it.

From Los Angeles Times Jan. 10, 2026

“Doctors. Scholars. Professors. They come to him looking for skeletons and jarred organs. Why? I don’t know. You’ll have to ask him.”

From "The City Beautiful" by Aden Polydoros

The roughly 7 million student-loan borrowers who were enrolled in SAVE, a Biden-era repayment program, will likely experience some of the most jarring changes over the next few months.

From MarketWatch Jul. 1, 2026

Investors cheering chip makers’ booming profits came to a jarring realization: Someone has to pay for that.

From The Wall Street Journal Jun. 26, 2026

Heil said he had just visited an exhibit featuring art made by artificial intelligence - an experience which he described as jarring.

From BBC Jun. 23, 2026

Whether in use as memorable transitions, to deliver a sonic hit of nostalgia or to underscore a jarring cliffhanger, songs pack emotional punch — and leave us wanting more.

From Los Angeles Times Jun. 10, 2026

The thought of him in the midmorning light, with the huntress standing before her, was jarring.

From "Ash" by Malinda Lo

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