sis
noun
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:
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
She won best new artist at the VMAs where she was photographed being giggly with "big sis" Swift.
From Salon ● Oct. 5, 2023
“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
But your sis and brother-in-law didn’t “hurt” him in the sense of showing malice or intending harm.
From Washington Post ● Feb. 28, 2023
“Your mom and sis have skills,” Kiki says, rolling the key chain around in one hand while pushing the stroller back and forth.
From "Legendary Frybread Drive-In" by Cynthia Leitich Smith
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
After a week grappling with the convoluted lingo, trying to translate "custom integration with SIS and open cross-platform compatible LTI," I gave up, and begged to continue Zooming.
From Salon ● Jan. 16, 2022
"Having been through a rather unusual experience for an SIS officer, few of whom have ever fallen into enemy hands, I found myself, for a short while, a bit of a celebrity," Blake said.
From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau
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.
