What is the meaning of Revision?

The process of revising:

1. The action or process of reviewing, editing and amending.
2. The action or process of reviewing something previously learned, especially one′s notes in preparation for a test or examination.

   The action or process of reviewing, editing and amending.

   The action or process of reviewing something previously learned, especially one′s notes in preparation for a test or examination.

   A changed edition, or new version; a modification.

   A story corrected or expanded by a writer commissioned by the original author.

   To provide with a new vision.

   genitive singular of revisio

   an audit

   a revision (change)

   Source: wiktionary.org