Braced Flip: A pyramid in which the top person performs a hip‐over‐head rotation while not in contact with anyone on the ground.
Braced Roll: A pyramid in which the top person performs a hip‐over‐head rotation while in contact with at least one person on the ground.
Those two lines are copied and pasted directly from AACCA guidelines which are available here:
http://www.cheerrules.org/wp-content/uploads/2018/09/2018-19-School-Rules.pdf
The national federation of high school sports Spirit Rules book can be purchased for a nominal fee here:
Spirit