Definitions

1. noun

The last car of a freight train, containing a crew to monitor the train’s progress and provide emergency assistance.

“The train’s engineer rode in the caboose to check the cargo and ensure everything was secure.”

2. noun

A place or position at the end of a sequence or series, often indicating the final stage or point of reference.

“She took the caboose position in the company’s annual sales rankings, marking the end of the competition.”