1. （法令或法规的）修正条款，修正案
An amendment is a section that is added to a law or rule in order to change it.
e.g. ...an amendment to the defense bill.
防御法案的修正案
e.g. ...a constitutional amendment...
宪法修正条款
2. 修改；修订
An amendment is a change that is made to a piece of writing.
名词修正案; 修改，修订