留守
るすBeing away from home, absence
N4noun·rusu
How to remember it
留 (keep) + 守 (guard) — leaving someone to "guard" while you're absent.
Example sentences
明日は一日中留守です。
あしたはいちにちじゅうるすです。
I'll be away from home all day tomorrow.
電話したけど、留守だった。
でんわしたけど、るすだった。
I called, but they weren't home.
Usage
留守番 (house-sitting); 留守電 (voicemail) is a very common modern use.
Related words
留守番留守電外出家