fratricide
C2formal, literary, legal, military
Definition
Meaning
The act of killing one's brother.
The killing of one's sibling; in military usage, the accidental killing of one's own forces by friendly fire.
Linguistics
Semantic Notes
Strictly denotes killing a brother; 'sororicide' is the term for killing a sister. In modern military contexts, it is often used euphemistically.
Dialectal Variation
British vs American Usage
Differences
No significant difference in core meaning. Military usage is equally common in both.
Connotations
Carries strong connotations of betrayal, familial sin, and ancient tragedy. The military sense carries connotations of tragic error.
Frequency
Very low-frequency word in everyday language, encountered primarily in historical, legal, or military texts.
Vocabulary
Collocations
Grammar
Valency Patterns
commit + fratricidebe accused of + fratricidebe guilty of + fratricideVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “A fratricidal war (a civil war or conflict between similar groups)”
Usage
Context Usage
Business
Virtually never used.
Academic
Used in history, literature (e.g., Shakespeare, classical studies), law, and military science.
Everyday
Extremely rare; would be used only in specific discussions of crime or history.
Technical
Standard term in military reports for 'friendly fire' incidents resulting in death.
Examples
By Part of Speech
verb
British English
- The legend claims he fratricided his twin to claim the throne.
American English
- The general was accused of fratriciding his own men through reckless orders.
adverb
British English
- The factions turned fratricidally upon each other.
American English
- The unit acted almost fratricidally in the fog of war.
adjective
British English
- The kingdom fell into a fratricidal conflict over succession.
American English
- The fratricidal bombing raid was a catastrophic failure of intelligence.
Examples
By CEFR Level
- (Not typical for A2 level)
- The old story is about a king who killed his brother. This is called fratricide.
- The historical record suggests the prince was guilty of fratricide, eliminating his rival to secure power.
- The military inquiry focused on the systemic failures that led to the tragic fratricide of three soldiers.
Learning
Memory Aids
Mnemonic
Think of 'fraternity' (a brotherhood) + '-cide' (killing). It's the killing of a fraternity member, specifically your brother.
Conceptual Metaphor
KILLING IS A FAMILIAL BETRAYAL; CONFLICT IS FRATRICIDE (e.g., 'The party was torn apart by fratricidal strife.')
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with "братоубийство" which covers both fratricide and the broader concept of civil war/citizen killing. English 'fratricide' is more narrowly personal or tactical.
Common Mistakes
- Using it to mean killing any relative (use 'parricide' for parent, 'sororicide' for sister).
- Misspelling as 'fratracide' or 'fratriciede'.
- Using it informally.
Practice
Quiz
In which context is the term 'fratricide' LEAST likely to be used accurately?
FAQ
Frequently Asked Questions
Fratricide specifically means killing one's brother. Sororicide means killing one's sister.
Yes, often as an adjective ('fratricidal') to describe destructive conflict within a closely-knit group, like a political party or nation.
No, it is an archaic specific term. In modern legal systems, the charge would be 'murder' or 'homicide', with the familial relationship as an aggravating circumstance.
It is a formal, clinical term that avoids the emotionally charged 'friendly fire' while precisely describing the killing of one's 'brothers in arms'.