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  • tin
    tin
    noun
    a low-melting, malleable, ductile metallic element nearly approaching silver in color and luster: used in plating and in making alloys, tinfoil, and soft solders. Sn; 118.69; 50; 7.31 at 20°C.
  • TIN
    TIN
    noun
    taxpayer identification number.
Synonyms

tin

1 American  
[tin] / tɪn /

noun

  • tins
    plural
  1. Chemistry. a low-melting, malleable, ductile metallic element nearly approaching silver in color and luster: used in plating and in making alloys, tinfoil, and soft solders. Sn; 118.69; 50; 7.31 at 20°C.

  2. tin plate.

  3. any shallow pan, especially one used in baking.

  4. any pot, box, can, or other container or vessel made of tin or tin plate.

  5. Squash. telltale.

  6. Chiefly British. a hermetically sealed can containing food.

  7. Slang. a small quantity of an illicit drug, especially from two to five grams of cocaine: usually sold in a small plastic bag, a glassine envelope, or often a small tin container.

  8. British Slang. money.


adjective

  1. made or consisting of tin or tin plate.

  2. false; worthless; counterfeit.

    a set of tin values.

  3. indicating the tenth event of a series, as a wedding anniversary.

verb (used with object)

  • tins,
    present (3rd person singular)
  • tinned,
    past participle,  past
  • tinning
    present participle
  1. Metallurgy.

    1. to cover or coat with tin.

    2. to coat with soft solder.

  2. Chiefly British. to preserve or pack (especially food) in cans; can.

  3. to cover (windows and doors in an abandoned or unoccupied building or apartment) with sheets of tin to prevent vandalism or occupancy by vagrants, squatters, etc.

TIN 2 American  
[tin] / tɪn /

noun

  1. taxpayer identification number.


tin British  
/ tɪn /

noun

  1. a metallic element, occurring in cassiterite, that has several allotropes; the ordinary malleable silvery-white metal slowly changes below 13.2°C to a grey powder. It is used extensively in alloys, esp bronze and pewter, and as a noncorroding coating for steel. Symbol: Sn; atomic no: 50; atomic wt: 118.710; valency: 2 or 4; relative density: 5.75 (grey), 7.31 (white); melting pt: 231.9°C; boiling pt: 2603°C

  2. Also called (esp US and Canadian): can.  an airtight sealed container of thin sheet metal coated with tin, used for preserving and storing food or drink

  3. any container made of metallic tin

  4. to complete a home baking of cakes, biscuits, etc

  5. Also called: tinful.  the contents of a tin or the amount a tin will hold

  6. corrugated or galvanized iron

    a tin roof

  7. any metal regarded as cheap or flimsy

  8. a loaf of bread with a rectangular shape, baked in a tin

  9. slang money

  10. it lives up to expectations

"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

verb

  1. to put (food, etc) into a tin or tins; preserve in a tin

  2. to plate or coat with tin

  3. to prepare (a metal) for soldering or brazing by applying a thin layer of solder to the surface

"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
tin Scientific  
/ tĭn /
  1. A malleable, silvery metallic element that occurs in igneous rocks. It has a crystalline structure and crackles when bent. Tin is used as an anticorrosion agent and is a part of numerous alloys, including bronze. Atomic number 50; atomic weight 118.71; melting point 231.89°C; boiling point 2,270°C; specific gravity 7.31; valence 2, 4.

  2. See Periodic Table See Note at element


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Etymology

Origin of tin

before 900; (noun) Middle English, Old English; cognate with Dutch, Old Norse tin, German Zinn; (v.) Middle English tinnen, derivative of the noun

Explanation

Tin is a kind of metal that is soft and silver-colored. The most common use of tin today is in solder, the hot, liquid metal that holds pipes and other metal pieces together. You may think of common items like tin foil and tin cans when you contemplate the uses of tin. Actually, so-called tin cans and tins are made of steel or other metals that are coated in tin. Before the middle of the 20th century, the foil used for covering food was made of thin sheets of tin. It was stiffer than today's foil (which is made of aluminum), and left food with a metallic, "tinny" taste.

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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:

Certainly the music played a big part, the children busking on every spare square of pavement, a joyful cacophony of tin whistle, fiddle, bodhrán.

From BBC Aug. 10, 2026

“But a tin of that Ossetra alone sells for $120. So I joke to people: ‘You’re getting a deal here.’

From The Wall Street Journal Aug. 6, 2026

"We use copper and tin and one more ingredient which is secret. Even though it's in very small quantities, it gives the cymbal a different character in terms of consistency and sound," he told AFP.

From Barron's Aug. 6, 2026

Heat the oven to 400°F. Lightly grease 9 cups of a standard muffin tin.

From Salon Jul. 20, 2026

Dad always used to keep a tin of the candy in the console of his car, and I’d always sneak outside and pick out the pineapple ones.

From "Red Flags and Butterflies" by Sheryl Azzam

Your beneficiary will also need an SSN or TIN.

From Los Angeles Times Feb. 3, 2022

It’s highly likely that the company you work for will be able to give you the TIN.

From Encyclopedia.com Jun. 6, 2018

When the number is being used as identification, it is typically referred to as a TIN, and when it is being used for employment tax reporting, it’s usually referred to as an EIN.

From Encyclopedia.com Jun. 6, 2018

TIN SWE Thaketa Myo, Burma Sir: The article, too, is excellent, and an unusual venture for a news magazine.

From Time Magazine Archive

THE TIN BOX Dick Gordon lay on a bed in a sunny south room at the Corbett place.

From A Daughter of the Dons A Story of New Mexico Today by William MacLeod Raine

As well as offering the few tins it had secured as a prize for its readers, it reported that thanks to “quiet diplomacy” between the magazine and AB Foods, negotiations are advancing.

From The Wall Street Journal Jun. 1, 2026

Across the city in a suburb of Beirut, kitchen shelves were stacked with sauces and tins crowded the walls as volunteers prepared green beans and fried rice balls.

From Barron's May 25, 2026

Frustrated by traditional candle formats, he launched a line of portable candles packaged in small, tuna-like tins designed to make “home follow you wherever you go.”

From Los Angeles Times May 19, 2026

The appeal is aesthetics — both assembling and filling the tins are supposed to be a pretty activity.

From Salon May 17, 2026

A tray held giant tins of dried milk and Boumvita, near a study table with a reading lamp, bottles of medicine, books.

From "Purple Hibiscus" by Chimamanda Ngozi Adichie

Keep foods like dried and canned beans, canned tomatoes, tinned fish, olive oil, and a variety of whole grains on hand so you always have something to cook with.

From MarketWatch Aug. 16, 2026

Everton made league history when Hafnia, a Danish tinned meat company, was the first sponsor to appear on a shirt, followed days later by Liverpool, who had signed up with Japanese electronics firm Hitachi.

From BBC Aug. 13, 2026

The meals of hot dogs and tinned fruit were revelatory to children used to the flavorings of ginger and kimchi: “This was straight-up American food, wholesome, facile, and inert, and we adored it.”

From The Wall Street Journal Aug. 4, 2026

Even tinned fish — one of my favorite budget-friendly pantry luxuries — delivers that distinctive briny quality without requiring a trip to a specialty seafood counter.

From Salon Jun. 9, 2026

When they entered the grove, Samwell Tarly tinned slowly looking at each face in turn.

From "A Game of Thrones" by George R.R. Martin

After the war in 1922, he bought the business of J. Lesher & Son and dealt in plumbing, heating, roof tinning, spouting and stoves.

From Washington Times Nov. 17, 2018

He estimated his process would be a third cheaper than tinning.

From Time Magazine Archive

First will come hot and cold rolling mills and a tinning operation, which will cost a total of $89.8 million and have an annual capacity of 555,000 tons.

From Time Magazine Archive

Through its encouragement of the tinning industry, it helped make tinned meat a part of the British diet; through its public lectures, it introduced the nation to such modern wonders as the Edison phonograph.

From Time Magazine Archive

“Come in,” she called, tinning her face toward the door.

From "The Awakening" by Kate Chopin

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