si
1 Americannoun
abbreviation
abbreviation
-
Sandwich Islands.
-
Staten Island.
symbol
abbreviation
noun
symbol
noun
abbreviation
Etymology
Origin of si
First recorded in 1720–30; see origin at gamut
Vocabulary lists containing si
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:
That response went viral and now the phrase “¿Y si sí?” is chanted by Mexicans as they cheer on their national soccer team — a squad that boasts four wins without conceding a goal.
From Los Angeles Times ● Jul. 5, 2026
It opens with a big-band cover of the 1920 standard “Whispering,” leading into the track, and closes with a reference to the 1947 French cabaret song “C’est si Bon.”
From The Wall Street Journal ● Jun. 15, 2026
In the city, the Queen was affectionately called si tau por, which means "boss lady" in Cantonese.
From BBC ● Sep. 14, 2022
In Spanish, Eso, si que es basically translates as "That's what it is!"
From Salon ● Nov. 8, 2021
This is another way to read it, although I am told a normal brain will not grasp it: Ti morf sgniht wen nrael nac uoy dna tnorf ot kcab koob tnereffid a si ti.
From "The Poisonwood Bible" by Barbara Kingsolver
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I saved up and bought a red 1989 Honda CRX Si.
From Los Angeles Times ● Jun. 22, 2026
To test the theory, Fang and Si conducted laboratory experiments using a thin layer of water driven by electromagnetic forces.
From Science Daily ● Jun. 3, 2026
Together with his brother Samuel Irving Newhouse Jr., known as Si, Donald oversaw and expanded the sprawling media company that was founded by their father more than a century ago.
From The Wall Street Journal ● May 27, 2026
The "Laudato Si" encyclical, which denounced mankind's ruthless exploitation of the environment, was hailed by experts for its scientific grounding.
From Barron's ● May 23, 2026
Princess Si Ling-chi was sitting under a mulberry tree when a silkworm cocoon fell into her teacup.
From "Middlesex: A Novel" by Jeffrey Eugenides
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The painting, which came from the private collection of media magnate SI Newhouse, is also now the fourth most expensive artwork ever sold at auction, according to ARTnews.
From BBC ● May 19, 2026
The memorial itself holds a "tiered system of commemoration", says Korean research company SI Analytics.
From BBC ● May 7, 2026
About 140 graves sit on the west side of the graveyard and 138 that sit on the opposite site, according to a satellite image taken in early April provided by SI Analytics.
From BBC ● May 7, 2026
She said she was surprised to see high recognition of Sports Illustrated with the Gen Z crowd, and credits SI for Kids, the spin-off publication for younger readers launched in 1989.
From Los Angeles Times ● Apr. 5, 2026
Oct-ober SI “Did you give Tony my thank-you note?”
From "The Dead and the Gone" by Susan Beth Pfeffer
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“The joy of his life was his connection to the S.I. Newhouse School of Public Communications at Syracuse,” his son, Steven, said Tuesday.
From The Wall Street Journal ● May 27, 2026
According to a new survey titled “The American Journalist Under Attack,” released by Syracuse University’s S.I.
From Washington Times ● Dec. 30, 2023
Nearly half a century ago, Californians elected Republican S.I.
From Los Angeles Times ● Jul. 9, 2023
But he also edited The New Yorker for five years before departing over “conceptual differences” with publisher S.I.
From Seattle Times ● Jun. 14, 2023
"Thomas Grogan, Rockville, S.I., thirty-eight cents for coal, etc."
From Tom Grogan by Smith, Francis Hopkinson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.