call number
MediumAcademic / Professional / Technical
Definition
Meaning
A unique code assigned to a library item (book, document, etc.) that indicates its physical location on the shelf, based on a classification system like Dewey Decimal or Library of Congress.
A systematic identifier used in library cataloging to organize and retrieve physical and sometimes digital resources. It functions as an 'address' for the item.
Linguistics
Semantic Notes
This is a compound noun. It is primarily used within library and information science contexts. The term is highly literal; 'call' refers to the act of requesting or locating the item, and 'number' refers to the alphanumeric code.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage. The term is standard in professional library jargon in both varieties.
Connotations
Neutral, technical term in both regions.
Frequency
Equally low-frequency in general discourse but standard within libraries in both the UK and US.
Vocabulary
Collocations
Grammar
Valency Patterns
The call number is [ADJECTIVE/CODE].Look up the call number for [BOOK TITLE].Items are arranged by call number.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “It's not on the shelf; you must have the call number wrong. (Implies a mistake in the locating process)”
Usage
Context Usage
Business
Rarely used. Might appear in contexts involving corporate libraries or archives.
Academic
Primary context. Used by students, researchers, and librarians in university and school libraries.
Everyday
Very low frequency. Most non-academic/public library users simply refer to 'the number on the book's spine'.
Technical
The core technical term in library cataloging, information management, and archival science.
Examples
By Part of Speech
verb
British English
- You need to call-number these new acquisitions before they can be shelved.
- The assistant is call-numbering the journals according to the new system.
American English
- The librarian will call-number the donated collection next week.
- All items must be properly call-numbered.
adverb
British English
- The books were arranged call-number sequentially.
- Not applicable as standard usage.
American English
- The system organizes items call-number wise.
- Not applicable as standard usage.
adjective
British English
- The call-number sequence was incorrect.
- Please follow the call-number order.
American English
- We are updating our call-number system.
- Check the call-number label for accuracy.
Examples
By CEFR Level
- I found the call number on the computer.
- The call number is on the side of the book.
- To find the book, write down its title and call number.
- The books are in order by their call numbers.
- The librarian explained that the Dewey Decimal call number indicated the book's subject area.
- If the call number starts with 'QA', it's a computer science book in the Library of Congress system.
- Advanced bibliographic records include the call number, which is derived from a complex classification schema reflecting the work's intellectual content.
- Discrepancies in call number assignment can lead to systematic shelving errors across a large collection.
Learning
Memory Aids
Mnemonic
Imagine a librarian CALLING out a NUMBER to direct you to a book's shelf location. The call number is like a phone number you 'dial' to find the book.
Conceptual Metaphor
AN ADDRESS IS A NUMBER (The call number is the book's home address in the library city).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation as "номер вызова" (which implies a phone call or summoning). The correct equivalent is "шифр хранения" or "сигнатура" in library contexts.
Common Mistakes
- Confusing 'call number' with 'ISBN' (International Standard Book Number, which identifies the edition, not its shelf location).
- Pronouncing it as a single stressed unit (it's a compound: 'CALL number').
Practice
Quiz
What is the primary purpose of a 'call number'?
FAQ
Frequently Asked Questions
No. An ISBN (International Standard Book Number) is a unique commercial identifier for a specific book edition, used globally by publishers and booksellers. A call number is a local library code for finding that book on a specific shelf.
Yes. Most modern call numbers are alphanumeric. For example, Library of Congress call numbers start with one, two, or three letters (e.g., PR, QA76.9), followed by numbers and often more letters and numbers.
You first find it in the library's online catalogue associated with the item's record. The physical item will have the same call number printed on a label, usually on the spine of the book.
No. The two most common systems are the Dewey Decimal Classification (DDC) and the Library of Congress Classification (LCC). Academic libraries often use LCC, while public and school libraries frequently use DDC. Different libraries may use different systems.