Vacant/ˈveɪkənt/ Definition 1 of 3Pro Tip 1/3Physical Spaces Often used for buildings, rooms, or areas that await to be filled or used. The auditorium remained vacant after the event. Pro Tip 2/3Seeking Occupancy Employs a sense of availability that invites use or occupancy. The sign advertised a vacant apartment. Pro Tip 3/3Suggests Opportunity When something is vacant, it might suggest a chance to use or claim the space. Noticing the vacant bench, she quickly sat down.