Meaning & use

dimensions

noun·Academic

Last updated

UK/daɪˈmenʃənz/
US/dəˈmɛnʃənz/

“dimensions” is a form of “dimension”. See that entry for the full set of meanings.

Meanings

  1. nounusually plural

    The measurements of an object or space, such as its length, width and height.

    Grammar: Usually plural when it means the measurements: the dimensions of the room are listed below.

    Patterns

    • the dimensions of something
    • take the dimensions of something

    Please check the dimensions of the sofa before you order it.

    The box's dimensions are forty by thirty by twenty centimeters.

    We measured the dimensions of the doorway to see if the piano would fit.

  2. nounusually plural

    The overall size or extent of something, especially a problem or event.

    Grammar: Often plural and followed by of: the dimensions of the crisis.

    Patterns

    • the dimensions of something
    • grasp the dimensions of something

    Nobody understood the full dimensions of the flood at first.

    The dimensions of the scandal became clear only after the audit.

    The charity was surprised by the dimensions of the demand for help.

  3. nouncountable

    One particular side, feature or part of a situation that you can think about separately.

    Grammar: Countable and often singular, with an adjective: a new dimension, an emotional dimension.

    Patterns

    • add a dimension to something
    • a new dimension to something

    Her letters gave the story a personal dimension.

    The cost is only one dimension of the decision.

    Being a parent added a whole new dimension to his life.

  4. nouncountabletechnical

    In mathematics and physics, each independent direction in which something can be measured, such as the three of ordinary space.

    Grammar: Countable, often used with a number: a space with four dimensions.

    Patterns

    • in three dimensions
    • a space of n dimensions

    A line has one dimension, a flat surface has two, and a cube has three.

    Physicists sometimes describe time as a fourth dimension.

    The software can display the model in three dimensions.

Word forms

singulardimension

Common combinations

the exact dimensions
I need the exact dimensions of the window to order curtains.
the dimensions of the problem
We must first understand the dimensions of the problem.
a new dimension
Music added a new dimension to the film.
in three dimensions
The architect built a model so clients could see the design in three dimensions.
give the dimensions
The seller forgot to give the dimensions of the table.
an extra dimension
Her humor gives the novel an extra dimension.

Synonyms and how they differ

measurements
Measurements are the actual figures you get when you measure something, while dimensions can also mean the general size or extent of something abstract.
size
Size is a single general idea of how big something is, whereas dimensions gives specific figures such as length and width.
extent
Extent describes how far or how widely something reaches and is used more for problems or damage than for exact measurements.
aspect
Aspect fits the third sense, a side of a situation, but it lacks the picture of an extra layer that dimension suggests.

Word family

dimension noun
one measurement or one aspect
dimensional adjective
relating to dimensions
three-dimensional adjective
having length, width and depth
multidimensional adjective
having many dimensions or aspects
dimensionless adjective
having no physical size or units

Commonly confused: dimensions or measurements? dimensions or demensions?

dimensions vs measurements

Measurements are the numbers you record when you measure; dimensions are the lengths, widths and heights themselves. In everyday use they overlap, but only dimensions can also mean the overall scale of a problem.

dimensions vs demensions

This is a common misspelling. The correct spelling is dimensions, with an i after the d.

Practice

A shop assistant says: 'I need the ___ of your living room to suggest the right rug.' Which word fits best?

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