Clue: Atoll formation

Answer: REEF

Length: 4

---

Similar Clues:

• They fly in formation (GEESE with 5 letters)
• Formation of bone (OSTOSIS with 7 letters)
• Cave formations (CRYSTALS with 8 letters)
• Formation at a river's mouth (DELTA with 5 letters)
• Fish formation (SCHOOL with 6 letters)
• Mouth formations (DELTAS with 6 letters)
• Historic atoll (e.g. BIKINI with 6 letters)
• Union formation? (MRS with 3 letters)
• Formation letter (VEE with 3 letters)
• Formation from glaciation (ARETE with 5 letters)