amendment

nouns

the act of amending or correcting
is derived from
is a type of (narrower)
the act of offering an improvement to replace a mistake; setting right
a statement that is added to or revises or improves a proposal or document (a bill or constitution etc.)
is derived from
is a type of (narrower)
a message that is stated or declared; a communication (oral or written) setting forth particulars or facts etc
"according to his statement he was in London on that day"