The term full-choke refers to a shotgun barrel with a constriction at the end that reduces the spread of shot, increasing the gun's accuracy and range. Some synonyms for full-choke include tight-choke, narrow-choke, and full-bore choke. These terms describe a similar constriction in the barrel but are used to give a more precise description of the specific size and degree of constriction. Other synonyms for full-choke include modified-choke and improved-choke, which are choke types that are less constricting than a full-choke. These variations in choke type and size allow for shooters to adjust their shotgun to better suit the target and environment they are shooting in.