allied
adjective
joined by treaty, agreement, or common cause.
allied
1
British
/ ˈælaɪd, əˈlaɪd /
adjective
-
joined, as by treaty, agreement, or marriage; united
-
of the same type or class; related
Allied
2
British
/ ˈælaɪd /
adjective
Other Word Forms
Etymology
Origin of allied
A Middle English word dating back to 1250–1300; see origin at ally, -ed 2
Explanation
Allied means united or joined together. If two countries are allied, they are on the same side and have common interests. When two people are allied, they are friendly — or at least cooperative. To be allied means to have an agreement to work together, so when politicians are allied on a bill, they've pledged to join forces and unite for a common cause. In a war, allied countries are fighting on the same side. Allied comes from ally, which first meant "join in marriage," from the Latin root alligare, "bind to."
Vocabulary lists containing allied
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.
It says it is supplying flying robots to more than a thousand public safety agencies in the country, every branch of the U.S. military and 29 allied nations.
From Los Angeles Times • Apr. 28, 2026
Shabnam, whose father worked with US and allied forces in western Afghanistan arrived at CAS in January 2025.
From Barron's • Apr. 27, 2026
Even sophisticated U.S. and allied defenses in the Gulf have been challenged by Iran’s drones and missiles, most of which still depend on communications links that could be disrupted.
From The Wall Street Journal • Apr. 15, 2026
Startups and allied defense industries are filling it, and investors who track those contracts will find the positions before the consensus does.
From MarketWatch • Apr. 13, 2026
“New Ghis is an island, and a much smaller port than this. We would be closer, yes, but we could find ourselves stranded. And New Ghis has allied with the Yunkai’i.”
From "A Dance with Dragons" by George R. R. Martin
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.
