Definitions

alliance

[uh-lahy-uhns] / əˈlaɪ əns /

NOUN

friendly association, agreement

Synonyms

STRONG

accord affiliation affinity betrothal bond coalition coherence collaboration collusion combination communion compact concord concurrence confederacy confederation congruity conjunction connection consanguinity cooperation engagement entente federation fraternization friendship interrelation kinship league marriage matrimony membership mutuality pact participation partnership relation support tie treaty union

Antonyms

STRONG

antagonism detachment disagreement disconnection discord disunity division divorce hatred opposition separation

WEAK

disunion estrangement hostility rebellion war

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.

Sycamore took control of Boots last year through the acquisition of parent company Walgreens Boots Alliance.

From The Wall Street Journal • Jun. 10, 2026

United Launch Alliance, a rocket company owned by Boeing and Lockheed Martin, has warned that flying Starship from even one pad in the area would likely disrupt other rocket operations.

From The Wall Street Journal • Jun. 8, 2026

She also directly responded to the criticism levelled at her from Sinn Féin & Alliance MPs.

From BBC • Jun. 7, 2026

“Commercial properties right now are not regulated under any stormwater permit,” said Sean Bothwell, executive director of California Coastkeeper Alliance.

From Los Angeles Times • Jun. 5, 2026

We followed the Alliance River—running dark and fast this time of year, and cold as all get-out.

From "Orbiting Jupiter" by Gary D. Schmidt

Vocabulary lists containing alliance

May the 4th Be With You: Star Wars Words

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Working Together: The Language of Unions

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Vocabulary from The Articles of Confederation

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