sibling
HighNeutral/Formal. Common in academic, technical, and everyday contexts. Less common in casual, familial conversation where 'brother/sister' is preferred.
Definition
Meaning
A brother or sister; a person who shares one or both parents with another person.
In a broader sense, can be used metaphorically for things that are closely related or part of the same group (e.g., sibling companies, sibling species in biology).
Linguistics
Semantic Notes
The term is inherently plural-friendly (siblings) and neutral regarding gender, making it efficient for referring to multiple brothers and sisters together. It can refer to a full sibling (sharing both biological parents), half-sibling (sharing one biological parent), or step-sibling (related through marriage of parents).
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage. The word is used identically in both varieties.
Connotations
Identical connotations of familial relation, often perceived as slightly more formal or technical than 'brother/sister'.
Frequency
Equally frequent and standard in both dialects.
Vocabulary
Collocations
Grammar
Valency Patterns
have a siblingbe a sibling to someoneamong/between siblingsVocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “sibling rivalry”
Usage
Context Usage
Business
Used for companies under the same parent corporation (e.g., 'Our sibling company in Spain handles European distribution').
Academic
Common in psychology, sociology, and biology (e.g., 'The study examined birth order effects among siblings').
Everyday
Used to ask about or describe family structure (e.g., 'Do you have any siblings?').
Technical
Used in genetics, genealogy, and taxonomy (e.g., 'The two species are considered sibling species').
Examples
By Part of Speech
adjective
British English
- The sibling relationship can be complex.
- She studied sibling dynamics in twins.
American English
- Sibling rivalry is a common theme.
- They have a strong sibling bond.
Examples
By CEFR Level
- I have one sibling. Her name is Anna.
- How many siblings do you have?
- My older sibling helps me with my homework.
- They are siblings, but they look very different.
- Growing up with three siblings taught me a lot about sharing.
- The inheritance was divided equally among the four siblings.
- Recent studies challenge the long-held assumptions about the effects of sibling birth order on personality.
- The merger brought together two sibling enterprises that had operated independently for decades.
Learning
Memory Aids
Mnemonic
Think of 'sib' as an old word for 'related' + 'ling' (as in 'duckling,' a small one). A sibling is a 'little relative' of yours.
Conceptual Metaphor
THE FAMILY IS A TREE (branches, roots). SIBLINGS ARE PEERS/COMPANIONS ON THE SAME BRANCH.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating as 'сиблинг' in everyday speech; it is a direct borrowing and sounds very technical. Use 'брат или сестра' or 'братья и сёстры' for clarity.
- Russian does not have a common, single-word equivalent. The phrase 'родные братья и сёстры' is specific but longer.
Common Mistakes
- Using 'sibling' as a verb (e.g., 'I sibling with him'). Incorrect.
- Using 'siblings' to refer to parents or cousins. It refers specifically to brothers and sisters.
- Mispronunciation: /ˈsaɪblɪŋ/ (like 'sigh') is incorrect; it's /ˈsɪblɪŋ/ (like 'sib').
Practice
Quiz
In which context is the word 'sibling' LEAST likely to be used?
FAQ
Frequently Asked Questions
Yes, 'sibling' is an umbrella term that includes full siblings, half-siblings, and often step-siblings, though the latter may be specified for clarity.
No, it is incorrect. 'Sibling' is a countable noun. The singular is 'a sibling' and the plural is 'siblings'.
It's useful for gender-neutral reference, for collective plural use ('siblings'), and in formal or technical writing where specificity about gender is unnecessary.
It comes from Old English 'sibb' meaning 'kinship, relationship' + the suffix '-ling'. It was revived in modern anthropology and psychology in the early 20th century.