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  • Sn
    Sn
    tin.
  • SN
    SN
    abbreviation
    Secretary of the Navy.
  • sn
    sn
    abbreviation
    Senegal

Sn

1 American  
Symbol, Chemistry.
  1. tin.


SN 2 American  

abbreviation

  1. Secretary of the Navy.

  2. Also sn, s/n screen name.


SN 1 British  

abbreviation

  1. Senegal (international car registration)

"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

Sn 2 British  

symbol

  1. tin

"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

sn 3 British  

abbreviation

  1. Senegal

"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

Etymology

Origin of Sn

From the Latin word stannum

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:

One type, called Sn or "lid" waves, moves along the top of the mantle in a region known as the lid.

From Science Daily ● Feb. 20, 2026

The sum, Sn, of the first n terms of a geometric sequence is written as Sn = a1 + a2 + a3 + ... + an.

From Textbooks ● May 6, 2020

Which of the following atoms would be expected to form negative ions in binary ionic compounds and which would be expected to form positive ions: Br, Ca, Na, N, F, Al, Sn, S, Cd?

From Textbooks ● Feb. 14, 2019

Evaluate the partial sums Sn for n = 5, 10, 20.

From Textbooks ● Mar. 30, 2016

“Professor, I think — I know — that Sn — that someone’s going to try and steal the Stone. I’ve got to talk to Professor Dumbledore.”

From "Harry Potter and the Sorcerer's Stone" by J.K. Rowling

SharkNinja SN 3.96%increase; green up pointing triangle raised its full-year outlook after second-quarter sales rose on strong demand across its product lineup, with growth led by cooking appliances, beauty products and international markets.

From The Wall Street Journal ● Aug. 5, 2026

A third technique is now emerging based on gravitationally lensed supernovae like SN Winny.

From Science Daily ● Apr. 29, 2026

SharkNinja’s SN -0.76%decrease; red down pointing triangle profit surged in the fourth quarter as sales across all four of the company’s product categories rose.

From The Wall Street Journal ● Feb. 11, 2026

Measurements show that this distant supernova closely matches the brightness and spectral features of SN 1998bw, a well known supernova linked to a gamma ray burst that exploded much closer to Earth.

From Science Daily ● Dec. 28, 2025

I stare at a table of numbers whose columns are labeled DA DN SA SN, and have to flip back and scan for the explanation: Dissimilar Affirmative, Dissimilar Negative, Similar Affirmative, Similar Negative.

From "The Sense of Style" by Steven Pinker

A few moments ago, an injured Roger Federer’s completed sn absurd win from 7 match points down in the fourth set to beat Tennys Sandgren in 5 sets.

From The Guardian ● Jan. 28, 2020

This means that S is some linear function of s1, …, sn, but not a public linear function.

From Nature ● Sep. 12, 2017

But as sn oil producer, E.N.I, has been a bungling flop.

From Time Magazine Archive

The last case arises when we consider the finite values of z for which the polynomial coefficient of sn vanishes.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" by Various

There is another sn which may perhaps be derived from the Latin sinuo, as snake, sneak, snail, snare; so likewise snap and snatch, snib, snub.

From A Grammar of the English Tongue by Samuel Johnson

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