Extending meaning : To increase in extent. To possess a certain extent; to cover an amount of space. To cause to increase in extent. To cause to last for a longer period of time. To straighten (a limb). To bestow; to offer; to impart; to apply. To increase in quantity by weakening or adulterating additions. To value, as lands taken by a writ of extent in satisfaction of a debt; to assign by writ of extent. Of a class: to be an extension or subtype of, or to be based on, a prototype or a more abstract class. To reenlist for a further period.