1. a small room leading to a main room

Examples

• Visitors waited in the anteroom before meeting the director.
• The doctor’s anteroom was filled with patients reading magazines.
• She paced nervously in the anteroom outside the interview room.
• The anteroom contained only a few chairs and a small table.
• We were asked to remain in the anteroom until called.
• The anteroom served as a buffer between the busy hallway and the quiet office.