rappel / repel [rəˈpɛl]
rappel – n. & v. – n. – 1. a drum beat to call people to arms; 2. in mountaineering, a technique to descend a steep incline using ropes; v. – 1. call a hawk; 2. descend along a rock face using ropes
repel – v. – 1. drive back or away; 2. remove, extinguish; 3. resist or repress (thought, inclination, emotion); 4. ban from privilege; 5. stop, restrain; 6. refuse to accept or admit; 7. disapprove