allied; allying
: to unite or form a connection or relation between : associate
… in 1774 when the colonies formally allied themselves against British power …—
Hartford (Connecticut) Courant
—usually used with with or toHartford (Connecticut) CourantHe allied himself with a wealthy family by marriage.
Its people allied themselves to Rome—and were then abandoned when legions left or taxes ran out.—Robert Fisk
Robert Fisk
: to form or enter into an alliance
They allied against their common enemy.
—usually used with withtwo factions allying with each other
plural allies
1
a
: a sovereign or state associated with another by treaty or league
America and its allies
b
the Allies
: the nations that fought together against Germany in World War I or World War II
2
: one that is associated with another as a helper : a person or group that provides assistance and support in an ongoing effort, activity, or struggle
a political ally
The teacher's union has found an unlikely ally in the company.
She's counting on her allies in the state legislature.
She has proven to be a valuable ally in the fight for better working conditions.
—often now used specifically of a person who is not a member of a marginalized or mistreated group but who expresses or gives support to that group
The storyline on "Glee" captures something larger that we are seeing with a new generation of allies (allies are people who support LGBT rights but aren't LGBT themselves).—David M. Hall
David M. Hall3
: a plant or animal linked to another by genetic or taxonomic proximity
ferns and their allies
-ally
3 of 3adverb suffix
: -ly entry 2
terrifically
—in adverbs formed from adjectives in -ic with no alternative form in -ical
Examples of ally in a Sentence
Verb
There may be occasions when America can ally with some of those states, as we did during the Gulf War.
—Ramesh Ponnuru, National Review, 15 Oct. 2001
Teresa's right to teach, however, would not be vindicated until our time when the late Paul VI named her a doctor of the church. In her own lifetime Teresa had the good sense to ally herself with outstanding supporters such as the observant Franciscan Peter Alcantara and the famous Dominican theologian, Domenico Báñez.
—Lawrence S. Cunningham, Commonweal, 28 Jan. 2000
The singers ally themselves with a gifted songwriter, and everyone gets some major-label exposure for what just happens to be a splendid album.
—Michael Azerrad, Rolling Stone, 13-27 July 1995
Generally, however, psychoanalysts do ally themselves with two positions, the first of which is that dreams are meaningful.
—Wynn Schwartz, Dreamtime and Dreamwork, 1990
She's allied herself with the moderates on this issue.
countries allying themselves with the EU
He'll even admit that he's hoping to ally himself to a wealthy family by marriage.
They've allied with their former enemies.
Noun
When the Soviets pulled out in early 1989, the ensuing power vacuum turned former allies into enemies. The Muslim fighters known as mujahideen, who were unified in their struggle against the Soviets, disbanded and fought one another for control of Kabul in a devastating civil war.
—Jiffer Bourguignon, Saveur, March 2008
Our allies would need us more than we would need them, so we could count on them to rally to our side in a crunch.
—Samantha Power, New York Times Book Review, 29 July 2007
These groups have learned from experience that the media are their most valuable ally. Publicity increases tips that fuel an investigation, and many communities have launched special-alert systems in the past few years to get news of an abduction on the air within minutes.
—Andrew Murr, Newsweek, 29 July 2002
fought with the Allies in World War II
She's counting on her allies in the state legislature.
Ramesh Ponnuru, National Review, 15 Oct. 2001
Teresa's right to teach, however, would not be vindicated until our time when the late Paul VI named her a doctor of the church. In her own lifetime Teresa had the good sense to ally herself with outstanding supporters such as the observant Franciscan Peter Alcantara and the famous Dominican theologian, Domenico Báñez.
—Lawrence S. Cunningham, Commonweal, 28 Jan. 2000
The singers ally themselves with a gifted songwriter, and everyone gets some major-label exposure for what just happens to be a splendid album.
—Michael Azerrad, Rolling Stone, 13-27 July 1995
Generally, however, psychoanalysts do ally themselves with two positions, the first of which is that dreams are meaningful.
—Wynn Schwartz, Dreamtime and Dreamwork, 1990
She's allied herself with the moderates on this issue.
countries allying themselves with the EU
He'll even admit that he's hoping to ally himself to a wealthy family by marriage.
They've allied with their former enemies.
Noun
When the Soviets pulled out in early 1989, the ensuing power vacuum turned former allies into enemies. The Muslim fighters known as mujahideen, who were unified in their struggle against the Soviets, disbanded and fought one another for control of Kabul in a devastating civil war.
—Jiffer Bourguignon, Saveur, March 2008
Our allies would need us more than we would need them, so we could count on them to rally to our side in a crunch.
—Samantha Power, New York Times Book Review, 29 July 2007
These groups have learned from experience that the media are their most valuable ally. Publicity increases tips that fuel an investigation, and many communities have launched special-alert systems in the past few years to get news of an abduction on the air within minutes.
—Andrew Murr, Newsweek, 29 July 2002
fought with the Allies in World War II
She's counting on her allies in the state legislature.
Recent Examples on the Web
Literary Hub, 23 Oct. 2025
Her victory comes after the ruling Liberal Democratic Party allied with the Japan Innovation Party and reportedly signed an agreement over the weekend to form a coalition government.
—Lim Hui Jie, CNBC, 21 Oct. 2025
Se Eun Gong, NPR, 2 Nov. 2025
Trans performers and allies have decried the casting of cis men in trans roles, in particular.
—Abby Monteil, Them., 31 Oct. 2025
See All Example Sentences for ally
Examples are automatically compiled from online sources to
show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Verb
In October 1940, the Soviet Union was allied with Nazi Germany and technically at war with Britain.
—Literary Hub, 23 Oct. 2025
Her victory comes after the ruling Liberal Democratic Party allied with the Japan Innovation Party and reportedly signed an agreement over the weekend to form a coalition government.
—Lim Hui Jie, CNBC, 21 Oct. 2025
Noun
The tariff deal finalized this week between Washington and Seoul is likely to further connect the allies' economies.
—Se Eun Gong, NPR, 2 Nov. 2025
Trans performers and allies have decried the casting of cis men in trans roles, in particular.
—Abby Monteil, Them., 31 Oct. 2025
See All Example Sentences for ally
Cite this Entry
“Ally.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ally. Accessed 6 Nov. 2025.
Copy CitationKids Definition
-ally
3 of 3 adverb suffix
-al·ly
(ə-)lē
Etymology
Verb
Middle English allien "unite," from early French alier (same meaning), derived from Latin al-, ad- "to" and ligare "to bind" — related to ligament
Adverb suffix
from 1-al + -ly
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