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:
"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
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
Dee and Lee’s youngest boy sleeping in their bedroom till he’s 5 or 6, then sharing a room with his big sis.
From New York Times ● Dec. 27, 2022
The message reads, “Love you too 4L & After thank u sis appreciate it FR.”
From Los Angeles Times ● Nov. 14, 2022
“Nah, my mom and sis did all the hard work.”
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
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
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.
