1. a trip or stay that lasts one night
2. a bag or suitcase designed for short trips
3. a person who stays overnight as a guest

Examples

• We planned a quick overnighter to the mountains.
• She packed her overnighter with just the essentials.
• The hotel offers special rates for overnighters.
• My small overnighter fits perfectly in the overhead compartment.
• We have an overnighter staying in the guest room tonight.
• The business trip was just an overnighter to Chicago.
• He grabbed his overnighter and headed to the airport.