Find Synonyms

union Synonyms

Another word for union

Choosing another word for union depends on context, so the 28 synonyms and similar words below are separated across 4 exact definitions and ranked by match strength.
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• noun (Context 1)

In mathematics, the set containing all elements that belong to at least one of two or more given sets.

Usage Example

"Students were asked to shade the Venn diagram to represent the join of Set A and Set B."

Strong
join
sum

• noun (Context 2)

A political federation or league of states or nations, or the state of harmony and agreement within a group.

Usage Example

"The delegates worked tirelessly to preserve the fragile federation among the allied provinces."

Strongest
federation
confederation
alliance
league
unity
Strong
coalition
confederacy
harmony
concord
solidarity

• noun (Context 3)

The action or fact of joining or being joined together, especially in a political, institutional, or marital context.

Usage Example

"The treaty established a lasting economic unification between the neighboring nations."

Strongest
unification
amalgamation
merger
marriage
Strong
integration
consolidation
fusion
matrimony
wedlock
partnership

• noun (Context 4)

An organized association of workers formed to protect and further their rights and interests; a labor union or trade union.

Usage Example

"The teachers' labor union negotiated a new contract that included smaller class sizes and better healthcare benefits."

Strongest
labor union
trade union
Strong
guild
brotherhood
syndicate
association
federation

Opposites of union

The opposite of union shifts depending on context. Common opposites include:

separation
disunion
divorce
dissolution
intersection
division
disunity
split
See all opposites of union

Cite this Entry


Wordmom. (2026). Synonyms for Union. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/union
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