tart

¹ American  

[tahrt] / tɑrt /

adjective

tarter, tartest

1. sharp to the taste; sour or acid.

   Tart apples are best for pie.

   Synonyms:

   piquant, acrid, astringent

   Antonyms:

   mellow, bland, sugary, sweet

2. sharp in character, spirit, or expression; cutting; biting.

   a tart remark.

   Synonyms:

   acrimonious, acerbic, caustic, barbed, sarcastic

   Antonyms:

   benign, gracious, gentle, kind, sweet

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tart ² American  

[tahrt] / tɑrt /

noun

1. a small pie filled with cooked fruit or other sweetened preparation, usually having no top crust.

2. a covered pie containing fruit or the like.

3. Slang. a prostitute or sexually promiscuous woman.

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verb phrase

1. tart up to adorn, dress, or decorate, especially in a flamboyant manner.

   The old restaurant was tarted up to look like a Viennese café.

tart ¹ British  

/ tɑːt /

adjective

1. (of a flavour, food, etc) sour, acid, or astringent

2. cutting, sharp, or caustic

   a tart remark

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tart ² British  

/ tɑːt /

noun

1. a pastry case often having no top crust, with a sweet or savoury filling

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tart ³ British  

/ tɑːt /

noun

1. informal a promiscuous woman, esp a prostitute: often a term of abuse See also tart up

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Other Word Forms

• tartish adjective
• tartishly adverb
• tartly adverb
• tartness noun
• tarty adjective

Etymology

Origin of tart¹

First recorded before 1000; Middle English; Old English teart “sharp, rough”; akin to Dutch tarten “to defy,” Middle High German traz “defiance”

Origin of tart²

First recorded in 1350–1400; 1905–10 tart ² for def. 3; Middle English tarte, from Middle French; compare Medieval Latin tarta

Explanation

A tart is small pie filled with fruit or custard, with no top crust, like the cherry tarts you bought at the bakery. As an adjective, tart describes a sour taste, like lemon, or harsh words, like your friend's tart reply to a question that makes her mad. In the 19th century, tart was British slang for "pretty woman." Some believe it is a shortening of "sweetheart." But by the end of that century, tart described a prostitute, something many language scholars trace back to the tart that you get at the bakery.

Example Sentences

The personal-size tart piled with cubes of mango makes a lovely pairing.

From The Wall Street Journal • Mar. 17, 2026

He said Crook's latest series is "quite incisive, it's not dreamy, he writes very funny lines, very tart and quite sardonic in their way".

From BBC • Feb. 10, 2026

Goldenberries are mostly grown in South America and are becoming more popular because of their nutrition and their balance of sweet and tart flavors.

From Science Daily • Jan. 11, 2026

A few days later, I made a decadent three-tiered espresso martini cake for my best friend’s 27th birthday, followed by a poached pear frangipane tart and a berry pavlova that I shared with my roommate.

From Salon • Dec. 13, 2025

I handed a plate of tart to one of the serving women, who carried it to the table and set it in front of Colonel Hawkins.

From "Chains" by Laurie Halse Anderson