whole sister
LowTechnical/Legal/Biological
Definition
Meaning
A female sibling who shares both biological parents with another person.
A sister with whom one shares a complete biological relationship, as opposed to a half-sister (sharing one parent) or stepsister (no biological relationship). In some contexts, it can be used to emphasize the completeness of the sibling bond, regardless of strict biological definition.
Linguistics
Semantic Notes
The term is primarily used to specify a familial relationship in contexts where precision is needed, such as legal documents, genealogy, or when distinguishing between types of siblings. In everyday conversation, "sister" is usually sufficient unless clarification is required.
Dialectal Variation
British vs American Usage
Differences
Usage is largely identical. The term is formal/technical in both varieties.
Connotations
Neutral and precise. No significant emotive difference between UK and US usage.
Frequency
Rare in casual speech in both regions. More likely found in legal, medical, or anthropological texts.
Vocabulary
Collocations
Grammar
Valency Patterns
[Person A] is [Person B]'s whole sister.[Person A] and [Person B] are whole sisters.She is my whole sister.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “No idioms specifically for 'whole sister'. Related: 'blood is thicker than water' (emphasizing family bonds).”
Usage
Context Usage
Business
Virtually never used.
Academic
Used in genetics, anthropology, sociology, and legal studies for precise kinship description.
Everyday
Rare. Used only for specific clarification in family discussions.
Technical
Standard term in legal (wills, inheritance), medical (genetic history), and genealogical contexts.
Examples
By Part of Speech
noun
British English
- After the DNA test, it was confirmed they were whole sisters, not half-sisters.
- The inheritance law treated whole sisters differently from half-sisters.
American English
- My whole sister and I look incredibly alike.
- The form asked if I had any whole siblings.
Examples
By CEFR Level
- I have one sister. She is my whole sister.
- My whole sister is two years older than me. We have the same parents.
- Although we have different fathers, she is my half-sister, not my whole sister.
- The genealogist asked if the reference was to a whole sister or a half-sister.
- In legal terms, a bequest to 'sisters' typically includes half-sisters unless specified as 'whole sisters'.
- The study compared the emotional closeness between whole sisters and half-sisters.
Learning
Memory Aids
Mnemonic
"WHOLE sister" shares the WHOLE set of parents (both mum and dad). Think of a 'whole' pie vs. a 'half' pie.
Conceptual Metaphor
COMPLETENESS IS WHOLENESS (a 'whole' sister represents a complete, unshared parental set).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Direct translation "целая сестра" would sound bizarre and be misunderstood. Russian uses "родная сестра" (native sister) or specifies "единокровная" (same father) / "единоутробная" (same mother) for half-siblings. The concept of 'whole' vs. 'half' is lexicalized differently.
Common Mistakes
- Using 'whole sister' in casual talk where 'sister' is enough.
- Confusing 'whole sister' with 'stepsister'.
- Thinking 'whole sister' is more affectionate than 'sister' (it's not).
Practice
Quiz
In which context is the term 'whole sister' MOST appropriately used?
FAQ
Frequently Asked Questions
Yes, 'whole sister' and 'full sister' are synonyms. Both specify a sibling relationship with both biological parents in common.
Only when you need to be legally, medically, or genealogically precise to distinguish from a half-sister or stepsister. In 99% of daily situations, 'sister' is correct.
Typically, no. The term implies a biological connection. An adopted sister who shares no biological parents with you would not be a 'whole sister' in the technical sense, though she is fully your sister in a familial sense.
Not necessarily. It specifies a biological fact, not an emotional bond. A person can be very close to a half-sister or stepsister and distant from a whole sister.