What does oblong mean?
An oblong is something that is distinctly longer than it is wide. The word is most often used as an adjective describing a rectangle, room, package, or other shape, and it suggests a clear elongation rather than a vague impression of length. An oblong shape retains the straight sides and corners associated with a rectangle but differs from it in proportion. In mathematical and design contexts, the noun refers to an elongated rectangular form. The term is more formal than everyday alternatives such as “long” or “stretched,” and it is especially useful when describing proportions precisely. Although oblong is sometimes used loosely for anything elongated, its clearest application is to a rectangle whose length noticeably exceeds its width.
Longer than wide, especially in the shape of a rectangle.
"The room was an oblong space with windows along one long wall."
More formal and precise than the everyday expression “long and narrow.”
A shape or object that is elongated, especially a rectangle longer than it is wide.
"The designer placed a narrow oblong at the centre of the poster."
Chiefly used in geometry, design, and formal descriptive writing.
The plural is used when referring to multiple oblong shapes or objects.
"The artist arranged several coloured oblongs across the canvas."
An oblong is the geometric opposite of a square: it keeps the rectangle's straight sides but stretches one dimension.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does oblong come from?
The English word comes from Latin oblongus, formed from the prefix ob- and the adjective longus, meaning “long.” In English, it was used by the 16th century in mathematical and descriptive contexts for a shape that was longer than it was wide. The modern sense continues the original emphasis on elongation and proportion.
How oblong is actually used
The adjective is formal and descriptive, common in writing about shapes, design, architecture, and objects. As a noun, it is more specialized and is often used in geometry, design, and descriptive contexts.