aiguilles

noun
  1. Plural of aiguille; sharp, needle-like peaks of rock or ice, especially in mountainous regions.
  2. Usage: Chiefly used in geology and mountaineering contexts; French origin; often used in English when describing Alpine formations
  3. Plural of aiguille; ornamental needle-like brooches or pins, historically used in jewelry.
  4. Usage: Archaic or specialized fashion/jewelry term

Examples