留守中
るすちゅう during absence from home

留守宅
るすたく house where the family is out

留守居
るすい caretaker or keeper (official post in the Edo era)

留守番
るすばん care-taking caretaker house-watching

留守番電話
るすばんでんわ answering machine

留守録
るすろく unattended (video, audio) recording

留守電
るすでん answering machine