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
“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
"Hey sis sorry I haven't been much on communication recently. This time of year is always rough," he wrote.
From Salon ● Nov. 11, 2022
It’s your life, sis; you gotta walk the path that feels most righteous to you,” Zora says.
From "Split the Sky" by Marie Arnold
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
Also part of the SPT season are co-productions “The Forgotten History of Mastaneh” with Seda Iranian Theatre Ensemble, and “Unrivaled” with feminist Asian American company SIS Productions.
From Seattle Times ● Aug. 9, 2023
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
He kept a close eye on his handpicked SIS unit as they fought to crack German, Italian, and Japanese systems, but for the most part he let them get on with the job by themselves.
From "The Woman All Spies Fear" by Amy Butler Greenfield
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.