oblong
B2Neutral to formal; common in technical, academic, and everyday descriptive contexts.
Definition
Meaning
A rectangle having its length longer than its width, or an elongated shape with four sides and four right angles.
Any shape that is noticeably longer in one dimension than the other, often applied to rectangular objects like leaves, windows, or fields.
Linguistics
Semantic Notes
Primarily refers to a 2D shape. While 'rectangle' includes squares, 'oblong' explicitly excludes squares by definition, referring to an elongated rectangle.
Dialectal Variation
British vs American Usage
Differences
Usage is largely identical. In American English, 'rectangle' is more common for general use; 'oblong' is used when emphasizing elongation. In British English, 'oblong' is slightly more frequent in technical and educational contexts (e.g., describing a table shape).
Connotations
Neutral; carries a slightly more precise or formal tone than 'rectangle'.
Frequency
Low-frequency in both varieties; more common in written than spoken English.
Vocabulary
Collocations
Grammar
Valency Patterns
[be] + oblong[be] + an oblong + noun[have] + an oblong + shapeVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None”
Usage
Context Usage
Business
Used in design, product descriptions, or architecture (e.g., 'an oblong conference table').
Academic
Common in geometry, botany (leaf shapes), and technical drawing.
Everyday
Describing objects like mirrors, trays, or gardens.
Technical
Precise term in geometry, engineering, and design specifications.
Examples
By Part of Speech
verb
British English
- Not used as a verb.
American English
- Not used as a verb.
adverb
British English
- Not used as an adverb.
American English
- Not used as an adverb.
adjective
British English
- She preferred the oblong mirror to the round one.
- The allotment was divided into oblong plots.
American English
- They bought an oblong coffee table for the living room.
- The leaf has a distinctly oblong form.
Examples
By CEFR Level
- The page is an oblong shape.
- I have an oblong plate.
- The garden is roughly oblong, much longer than it is wide.
- He drew an oblong on the whiteboard.
- The architect proposed an oblong layout for the new swimming pool.
- Many modern smartphones have an oblong screen.
- The oblong configuration of the hall presented acoustic challenges for the conductor.
- The pollen grains are characterised by an oblong morphology under the microscope.
Learning
Memory Aids
Mnemonic
Think 'OB-long' - an Object that is obviously LONGer than it is wide.
Conceptual Metaphor
ELONGATION IS A DEVIATION FROM SYMMETRY (a square is 'perfect', an oblong is 'stretched').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation from Russian 'продолговатый' for 3D objects; 'oblong' is primarily for 2D shapes. For 3D, use 'elongated' or 'oval' for rounded shapes.
Common Mistakes
- Using 'oblong' to describe a 3D object like a cylinder.
- Confusing 'oblong' (right angles) with 'oval' (curved).
Practice
Quiz
Which of the following best describes the core geometric meaning of 'oblong'?
FAQ
Frequently Asked Questions
An oblong is a specific type of rectangle where the length is greater than the width. All oblongs are rectangles, but not all rectangles are oblongs (a square is a rectangle but not an oblong).
Yes, in descriptive contexts (e.g., 'an oblong face') it refers to a face shape that is longer than it is wide, with a relatively straight line along the jaw and forehead.
No, 'oblong' is primarily a 2D shape descriptor. For 3D objects that are long, use 'elongated', 'rectangular', or 'cylindrical'.
'Oblong' has straight sides and right angles (like a stretched rectangle). 'Oval' has curved sides and no angles (like an egg shape).