1

tin

noun \ ˈtin \
Updated on: 10 Dec 2017

Definition of tin

1 : a soft faintly bluish-white lustrous low-melting crystalline metallic element that is malleable and ductile at ordinary temperatures and that is used especially in containers, as a protective coating, in tinfoil, and in soft solders and alloys — see Chemical Elements Table
2 a : a box, can, pan, vessel, or a sheet made of tinplate; broadly : such a container of any metal (such as aluminum)
b : a metal container and its contents
  • a tin of tomatoes

tin

adjective

tinful

play \-ˌfu̇l\ noun

Examples of tin in a Sentence

  1. row upon row of tins containing food for an emergency that never happened

Recent Examples of tin from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of tin

Middle English, from Old English; akin to Old High German zin tin

tin Synonyms

Synonyms
barrel, canister (also cannister), drum, can
Related Words
bucket, pail; cannikin; tin can

2

tin

verb

Definition of tin

tinned; tinning
transitive verb
1 : to cover or plate with tin or a tin alloy
2 : to put up or pack in tins : can
  • tinned peaches

Recent Examples of tin from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of tin

14th century


TIN

abbreviation

Definition of TIN

taxpayer identification number

Financial Definition of TIN

TIN

What It Is

Also called an Individual Taxpayer Identification Number (ITIN), a taxpayer identification number (TIN) is a nine-digit number that the IRS uses to identify individuals who do not have and are not required to obtain a Social Security number.

How It Works

TINs always begin with the number 9. Similar to Social Security numbers, TINs take the XXX-XX-XXXX pattern. The fourth and fifth digits always fall in the 70-88, 90-92, and 94-99 ranges. People can apply for a TIN using IRS Form W-7 ("Application for IRS Individual Taxpayer Identification Number").

TINs are for tax purposes only; they do not replace Social Security numbers, authorize a person to work in the United States, or create eligibility for Social Security or other benefits. The IRS issues TINs regardless of immigration status because people both inside and outside the United States may have tax obligations to the United States under the Internal Revenue Code.

Why It Matters

TINs are not the same as Employer Identification Numbers (EINs). It’s also important to note that TINs are for federal tax purposes; states may have additional identification requirements for taxpayers who do not have Social Security numbers.



TIN Defined for English Language Learners

tin

noun

Definition of tin for English Language Learners

  • : a soft, shiny, bluish-white metal that has many different uses

  • : a container or plate made of metal

  • : a decorative metal box with a cover or lid


TIN Defined for Kids

tin

noun \ ˈtin \

Definition of tin for Students

1 : a soft bluish white metallic chemical element used chiefly in combination with other metals or as a coating to protect other metals
2 : something (as a can or sheet) made from tinplate
  • a tin of cookies

Medical Dictionary

tin

noun \ ˈtin \

medical Definition of tin

: a soft faintly bluish white lustrous low-melting crystalline metallic element that is malleable and ductile at ordinary temperatures and that is used as a protective coating, in tinfoil, and in soft solders and alloys symbol Sn — see Chemical Elements Table

Law Dictionary

TIN

abbreviation

legal Definition of TIN

taxpayer identification number


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