What is the meaning of Augmentation?

The act or process of augmenting.

An addition or extra, something that is added to something else.

A particular mark of honour, granted by the sovereign in consideration of some noble action, or by favour; and either quartered with the family arms, or on an escutcheon or canton.

A surgical procedure to enlarge a body part, as breast augmentation.

The stage of a disease during which symptoms increase or continue.

A compositional technique where the composer lengthens the melody by lengthening its note values.

An increase of stipend obtained by a parish minister by an action raised in the Court of Teinds against the titular and heritors.

an increase, a raise

a pay raise

Source: wiktionary.org