English Reference

Word

separation

Phoneticssep·a·ra·tion, stress on the third syllable

US/ˌsɛpɝˈeɪʃən/

UK/sˌɛpəɹˈeɪʃən/

Definitions

01being apart

B2 · Upper Intermediate Uncountable noun

n. the state of being apart or the act of moving things away from each other.

n. the act of disuniting two or more things, or the condition of being separated.

“The separation of the two chemicals must be done very carefully in the lab.”

“The physical separation of the two departments led to a noticeable breakdown in daily communication and collaborative problem-solving.”

02distance or gap

B2 · Upper Intermediate Countable noun

n. a gap or space that keeps two things apart.

n. an interval, gap, or physical space that divides things or people.

“There was a small separation between the two buildings where a path ran.”

“The safety regulations require a minimum separation of five metres between the fuel storage tanks and the main office block.”

Synonyms

03marital status

B2 · Upper Intermediate Countable noun Law

n. when a married couple decides to live in different homes but stays legally married.

n. the condition of a married couple living in separate residences while remaining legally married, often as a precursor to divorce.

“After years of arguing, the couple agreed to a legal separation.”

“The lawyer explained that a formal separation agreement would address child custody and asset division without dissolving the marriage entirely.”

Synonyms

breakupestrangement

Antonyms

04leaving a job

C1 · Advanced Countable noun Military Formal · Technical

n. the act of leaving a job or the military.

n. the termination of a contractual relationship, specifically departure from active military duty or employment.

“He received his official separation papers from the army last week.”

“The human resources department handled the involuntary separation of several hundred employees following the merger of the two firms.”

Usage

Often used in administrative or military contexts to describe the end of service.

Collocations

Common phrases and expressions where native English speakers use the word “separation” in context.

Adjective

01. complete separation

“The new policy ensures a complete separation of church and state within the local government.”

adj + noun

Real-World Examples

“Parents have told BBC Panorama the agency tasked with helping to secure financial support for children after separation or divorce is driving them to breaking point.”
BBC News 17 Aug 2026
“For enslaved women, the forced separation from their children was among the institution’s most devastating cruelties.”
The Conversation 11 Aug 2026
“For many incarcerated people, separation from family and friends is one of the most painful aspects of life behind bars .”
The Conversation 10 Aug 2026
“Scientists have discovered that tiny, sharply curved wrinkles in graphene can dramatically alter its electrical behavior, creating surprisingly strong charge separation.”
ScienceDaily 17 Aug 2026

Etymology

Attested in the 15th Century C.E.; from Middle English separacioun, from Old French separacion, from Latin separatio, separationem. Morphologically separate + -ion.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

Related words

Domains

LawMilitary

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Common
Level
C1 · AdvancedOxford
Updated

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English Reference