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.
Taiwan’s importance to U.S. and allied economic strength may be without historical precedent: a relatively small island that anchors the world’s most important technology stack.
From The Wall Street Journal • May 13, 2026
American and allied military forces are searching for two U.S.
From The Wall Street Journal • May 3, 2026
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
In its defense programs, GE Aerospace continues "to execute with speed against high-priority military needs in support of US and allied warfighters," Culp added.
From Barron's • Apr. 21, 2026
—Julius Caesar Ptolemy’s advisers knew that if Cleopatra allied with Caesar, they stood to lose all their power.
From "Sterling Biographies®: Cleopatra: Egypt's Last and Greatest Queen" by Susan Blackaby
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.
