What does "chit" refer to in naval terms?

In naval terminology, a "chit" refers to a document that serves as a record of transactions, often functioning as a coupon or receipt. It can be used in various contexts, such as ordering supplies, accounting for equipment, or verifying the transfer of services. Chits help maintain order and accountability within naval operations by providing written proof of orders and requests.

The other options do not align with the established definition of "chit" in the naval context. Nautical flags, while essential for communication at sea, are not referred to as chits. Likewise, while food is crucial for sustenance on a ship, there is no specific culinary reference tied to the term chit. Lastly, emergency signals, though critical for safety and communication in emergencies, are distinct from the purpose and function of a chit. This clear distinction helps reinforce the correct understanding and application of the term within naval operations.