ACL most often refers to a ligament in the knee, but it can also mean other things like a music festival.
ACL in the body
In medicine and anatomy, ACL stands for anterior cruciate ligament, which is located inside the knee joint. It runs diagonally between the femur (thigh bone) and the tibia (shin bone), helping stabilize the knee and preventing the shin bone from sliding forward.
ACL as a music festival
In entertainment, ACL commonly refers to the Austin City Limits Music Festival. This festival takes place in Zilker Park in Austin, Texas, at 2100 Barton Springs Road.
If you meant a different ACL (for example in computing or networking), say a bit more about the context and that meaning can be clarified.
