The term 'turned on an axis' can be expressed in two different ways. The first is 'PIVOTED, ' which has seven letters, and the second is 'slued, ' which has five letters. Pivoting is a type of rotational movement where an object is turned around a fixed point. Sluing is a type of rotational movement where an object is turned around its own axis. Both terms refer to the same action, which is turning an object around an axis.