allied

adjective

al·​lied ə-ˈlīd  ˈa-ˌlīd 

1

: having or being in close association : connected

two families allied by marriage

2

: joined in alliance by compact or treaty

specifically, Allied : of or relating to the nations united against Germany and its allies in World War I or those united against the Axis powers in World War II

3

a

: related especially by common properties or qualities

heraldry and allied subjects

b

: related genetically

Synonyms

• related

Examples of allied in a Sentence

people with foreign language fluency and an allied skill such as the ability to relate to people from different cultures

Recent Examples on the Web

Last month, Russian drones also twice crossed into NATO airspace, prompting allied aircraft to shoot down several over Polish territory. —David Brennan, ABC News, 1 Oct. 2025

There are also debates about whether the Golden Dome should include allied systems and how much access artificial intelligence should have to sensitive information. —Sujita Sinha, Interesting Engineering, 30 Sep. 2025

Along with allied criminal groups, the syndicate’s crimes led to the deaths of 10 people who disobeyed the group’s management or tried to escape the compounds, according to the Chinese court’s statement. —Helen Regan, CNN Money, 30 Sep. 2025

This was also the first time the unmanned aircraft had been deployed to the allied country. —Ryan Chan, MSNBC Newsweek, 30 Sep. 2025

Word History

First Known Use

circa 1518, in the meaning defined at sense 1

Rhymes for allied

• abide
• applied
• aside
• astride
• azide
• backside
• bankside
• bastide
• bayside
• bedside
• belied
• beside

Kids Definition

allied

adjective

al·​lied ə-ˈlīd  ˈal-ˌīd 

1

: being related or connected in some way

chemistry and allied subjects

2

a

: joined in alliance

allied nations

b

capitalized : of or relating to the nations united against Germany and its allies in World War I or World War II