Constitution change the is a term used to describe the process of amending the United States Constitution. Amendments are changes to the Constitution that are proposed by Congress and ratified by three-fourths of the states. Amendments can be proposed in either the House of Representatives or the Senate, and must be approved by two-thirds of both chambers before being sent to the states for ratification. Once ratified, an amendment becomes part of the Constitution and is legally binding. The word 'AMEND' is derived from the Latin word 'emendare, ' which means 'to correct or improve.'