formation

noun
  1. The action of forming or process of being formed. noun
    The formation of the mountain range took millions of years.
    The formation of the new government was announced yesterday.
  2. An arrangement or pattern of a group of people or things. noun
    The soldiers marched in a tight formation.
    The birds flew in a V formation across the sky.
  3. A structure or arrangement of something, often referring to geological or natural features. noun
    The rock formation was a popular tourist attraction.
    The unique formation of the coral reef supports diverse marine life.