defector

/dɪˈfektər/ · dih-FEK-turnoun

A person who abandons one country, organization, cause, or allegiance to join an opposing one.

Use defector to express this relationship precisely: a person who abandons one country, organization, cause, or allegiance to join an opposing one.

What defector Really Means

The word becomes easier to use when its closely related senses are separated and compared.

1

Core meaning

A person who abandons one country, organization, cause, or allegiance to join an opposing one.

Example

The defector supplied information to the rival state.

2

Common noun frame

Use this noun in a complete noun phrase, adding the complement that identifies what it refers to when needed.

Example

A former party official became its most prominent defector.

3

Analytical distinction

Choose it when this exact concept matters; a related term may describe its cause, evidence, or opposite instead.

Example

The memoir recounts the defector's escape.

Use defector Naturally

Notice how the surrounding noun or clause reveals the exact shade of meaning.

The defector supplied information to the rival state.

A former party official became its most prominent defector.

The memoir recounts the defector's escape.

Precision Matters

Defector overlaps with several common words, but each carries a different emphasis.

defector

Means a person who abandons one country, organization, cause, or allegiance to join an opposing one.

vs.
compatriot

Means a person from the same country as another person.

defector

Means a person who abandons one country, organization, cause, or allegiance to join an opposing one.

vs.
courtier

Means a member or attendant of a royal court, sometimes one who seeks favour through flattery.

defector

Means a person who abandons one country, organization, cause, or allegiance to join an opposing one.

vs.
combatant

Means a person, group, or state that fights or takes part directly in armed conflict.

defector

Means a person who abandons one country, organization, cause, or allegiance to join an opposing one.

vs.
adversary

Means an opponent, rival, or enemy in a conflict, contest, debate, or struggle.

Test defector in Context

The person abandons one allegiance to join an opposing group.

1

After leaving the regime and joining its rival, the diplomat was labelled a ___.

Prepared byFirst Academy
Editorial responsibilityFirst Academy Academic Team
Updated3 August 2026
Selection and reviewRead our methodology