Axis

/ˈæksɪs/

Meaning & Definition

noun
A straight line around which an object rotates.
The Earth spins on its axis, resulting in day and night.
An imaginary line that divides a symmetrical figure or body into two equal halves.
The axis of symmetry for the parabola is the vertical line that runs through its vertex.
A central line that is used as a reference for measurement or alignment.
In cartesian coordinates, the x-axis runs horizontally and the y-axis runs vertically.
A group of countries in alliance, particularly during a war; specifically refers to the Axis powers in World War II.
Germany, Italy, and Japan were known as the Axis in World War II.

Etymology

Late Latin 'axis', meaning 'pivot, axis', from Greek 'axōs'.

Common Phrases and Expressions

axis of evil:
A term used to refer to countries perceived as threats to world peace.
on a different axis:
To be on a different wavelength or perspective.

Related Words

Slang Meanings

To be at the center of a situation.
He's the axis of our friend group.
A reference point.
Her advice has always been my axis when making big decisions.