serra

noun
  1. A saw-like ridge or formation, often referring to a mountain range with a jagged outline. noun
    The hikers admired the serra that loomed in the distance, its peaks sharp against the sky.
    The serra was difficult to traverse due to its steep and rugged terrain.
  2. A type of fish known as the sawfish, characterized by its long, flattened snout edged with teeth, resembling a saw. noun
    The serra is a fascinating creature, often found in tropical and subtropical waters.
    Conservation efforts are underway to protect the serra, which is threatened by overfishing.