- Noun. An alteration or change for the better; correction of a fault or of faults; reformation of life by quitting vices.
- Noun. In public bodies; Any alteration made or proposed to be made in a bill or motion that adds, changes, substitutes, or omits.
- Noun. (legal) Correction of an error in a writ or process.
- Noun. An addition to and/or alteration to the Constitution.
- Noun. That which is added; that which is used to increase or supplement something.