1. A performer on the trapeze, tightrope, etc.: A person who "walks on tiptoes", such as walking on a wire high above the ground, is called an acrobat!.
2. A skilled performer of gymnastic feats: An acrobat can walk on a tightrope or can swing on a trapeze, for example.
3. Etymology: from French acrobate, from Greek akrobates, "rope dancer, gymnastic performer"; related to akrobatos, "going on tip-toe, climbing up high"; from akros "topmost, at the end point" + bainein, "to walk, to go".