Clue: Slangy letters of identification

Answer: ICU

Length: 3

---

Similar Clues:

• Post-office alert letters (AKA with 3 letters)
• Post office poster letters (AKA with 3 letters)
• Officer's identification (BADGE with 5 letters)
• Post office letters (COD with 3 letters)
• Letters from the post office? (COD with 3 letters)
• Letters that are not at the post office (EMAIL with 5 letters)
• Letters that don't go to the post office (EMAIL with 5 letters)
• Letters that can't be found at the post office (EMAIL with 5 letters)
• Office PC linkup letters (LAN with 3 letters)
• Letters on a business office stamp (RECD with 4 letters)