pitfall [pitfalls]◼◼◼(potential problem, hazard, or danger) noun [UK: ˈpɪt.fɔːl] [US: ˈpɪt.ˌfɒl]I managed to sidestep every pitfall. = J'ai réussi à éviter tous les écueils.
reef [reefs]◼◼◻(rocks at or near surface of the water) noun [UK: riːf] [US: ˈriːf]