Definitions

1. noun

A room in a building, especially a hotel or restaurant, where guests can leave their coats or other outer garments to be kept while they are dining or otherwise occupied.

“She hung her coat in the coatroom before going to dinner.”

2. noun

A closet or room for storing coats, jackets, and other outer garments.

“The coatroom in our house is where we store all our winter clothing.”