sis
noun
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sis
1 American
[sis]
/ sɪs /
noun
Informal.
-sis
2
American
SIS
1
British
abbreviation
-
Also called: MI6. (in Britain) Secret Intelligence Service
-
(in New Zealand) Security Intelligence Service
sis
2
British
/ sɪs /
noun
sis
3
British
/ siːs, sɪs /
interjection
Etymology
Origin of sis1
1825–35, shortened form; compare Dutch zus for zuster sister
Origin of -sis2
From Greek
Vocabulary lists containing sis
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:
"Hey Sis, call me back when you get this. I was just calling to see how your day went! I love you to the moon & back sis," it read.
From BBC ● Sep. 3, 2026
Former child star Danielle Spencer, who brought sass as little sis Dee in the 1970s sitcom ‘What’s Happening!!,’ died Monday after battling cancer.
From Los Angeles Times ● Aug. 13, 2025
You’ve said your sis won’t stop harping on your solution, which suggests there’s a deeper issue here.
From Slate ● Mar. 20, 2024
“Hey sis, what’s up? It’s been hot as hell over here,” read one of their messages, shared with The New York Times.
From New York Times ● Jun. 29, 2023
“Hey, sis one and sis two,” he said.
From "The Lions of Little Rock" by Kristin Levine
Sallay was promoted to head the SIS, Sri Lanka’s main intelligence agency, following Rajapaksa's victory, but was dismissed after Anura Kumara Dissanayake won the presidency in 2024, promising prosecutions of those behind the attacks.
From Barron's ● Feb. 25, 2026
Slovakia's domestic intelligence service, the SIS, has confirmed the claims, but has given few details.
From BBC ● Jan. 24, 2025
SIS Chief Richard Moore disclosed in July 2022 that China’s intelligence services are “extraordinarily well-resourced,” the report said.
From Washington Times ● Jul. 19, 2023
As an example, Hsieh pointed to SIS Productions, which had moved toward a collective leadership model two decades ago.
From Seattle Times ● May 26, 2022
William also had several Jewish colleagues in the SIS, most of whom he hired himself.
From "The Woman All Spies Fear" by Amy Butler Greenfield
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Get a wordDefinitions 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.
