Meaning & use

axis

noun·Academic

An imaginary or real straight line around which an object rotates or is arranged symmetrically.

See it in a sentence

The Earth spins on its axis once every twenty-four hours.

The graph plots time along the horizontal axis and speed along the vertical axis.

A note on using this word

The plural of axis is axes, not 'axises.' In math and science, an axis can be a physical line of rotation or a reference line on a graph.

Words with a similar meaning

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