What is the meaning of Variation?

The act of varying; a partial change in the form, position, state, or qualities of a thing.

A related but distinct thing.

The angular difference at the vessel between the direction of true north and magnetic north.

A line of play that differs from the original.

A technique where material is repeated with alterations to the melody, harmony, rhythm, timbre, texture, counterpoint or orchestration; but with some invariant characteristic, e.g. a ground bass.

The modification of a hereditary trait.

Deviation from the mean orbit of a heavenly body.

The situation where two or more linguistic forms appear in the same environment without a change in meaning, the choice of form being determined by factors of dialect, sociolect, register or simply the speaker's preference.

An infinitesimal perturbation applied to a function, typically denoted ${\displaystyle \delta f}$, used to probe how a functional changes.

The corresponding first-order change in a functional induced by such a perturbation, typically denoted ${\displaystyle \delta J[f]}$ and called the first variation.

variation

variation

variation (technique where material is repeated with alterations to the melody, harmony, rhythm, timbre, texture, counterpoint or orchestration; but with some invariant characteristic, e.g. a ground bass)

variation

Source: wiktionary.org