Get going and Lead off

Get going verb - Begin or set in motion.

Lead off and get going are semantically related in start action topic. In some cases you can use "Lead off" instead a verb phrase "Get going".

Lead off verb - To take the first step in (a process or course of action).

Get going and lead off are semantically related in begin topic. You can use "Get going" instead a verb "Lead off", if it concerns topics such as start action.