to amend or alter

to revise one's opinion.

to alter something already written or printed, in order to make corrections, improve, or update

to revise a manuscript.

British . to review (previously studied materials) in preparation for an examination.

an act of revising.

a revised form of something; revision.

Printing . a proof sheet taken after alterations have been made, for further examination or correction.

verb

alter , amend , blue-pencil * , change , clean up , compare , cut , debug , develop , emend , go over , improve , launder , look over , modify , overhaul , perfect , polish , recalibrate , recast , reconsider , redo , redraft , redraw , reexamine , rehash , reorganize , restyle , revamp , review , rework , rewrite , run through , scan , scrub , scrutinize , study , tighten , update , upgrade , emendate , correct , edit , rearrange , redact , reform , renovate