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
If we looking at her, we're all chanting for Coco because we wanted her to win, but at the same time it's like, well, sis, you didn't lose either.
From Salon ● Sep. 20, 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
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
“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
The SIS did not state when the foreign nationals arrived in Moldova, which countries they were from, or for whom they were allegedly working.
From Seattle Times ● Feb. 27, 2023
Sandu said that between October and December, Moldovan police and its Intelligence and Security Service, or SIS, have intervened in “several cases of organized criminal elements and stopped attempts at violence.”
From Washington Times ● Feb. 13, 2023
"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.
