what do we call a change to the constitution

A change to the constitution is called a "constitutional amendment." It is a formal modification or alteration to the text or structure of the constitution. Most constitutions have a special procedure for making amendments, which involves more stringent requirements than ordinary legislation. For example, in the United States, an amendment must be proposed by a two-thirds vote in both houses of Congress and then ratified by three- fourths of the state legislatures or state ratifying conventions. The changes can either directly alter the existing text or be appended as supplemental additions to the constitution. This term and process are widely recognized and used in many countries' legal systems. Thus, the correct term for a change to the constitution is a "constitutional amendment."