1. A narrow bed or bunk, especially one built into a wall or a train or ship compartment.
Usage: Common in European trains and ferries; Often used in plural when referring to multiple beds in a shared compartment

Examples

• The overnight train had couchettes for passengers who wanted to sleep during the journey.
• She booked a couchette on the ferry to save money on accommodation.
• The cabin contained four couchettes stacked two high on each side.
• Passengers in the couchette car shared a compartment with strangers.
• The couchette was narrow but comfortable enough for a night's rest.
• Many budget travelers prefer couchettes to expensive hotel rooms when traveling by train.