Leaving one's home; running away from home (often used for someone — especially a child — who leaves home and stays away).
彼は家出してから連絡が途絶えた。
He ran away from home and then stopped contacting anyone.
娘が家出したと聞いて、両親はとても心配している。
The parents are very worried after hearing that their daughter ran away from home.
家出する前に、まず相談窓口に連絡したほうがいい。
Before running away from home, it's better to contact a counseling service first.
あの少年は家出常習者だと言われている。
That boy is said to be a habitual runaway.
Outing; going out (archaic usage — historically used to mean going outside or taking an outing).
古い日記には『家出して町へ行く』と記されており、ここでは単に外出したという意味だ。
An old diary notes '家出して町へ行く', and here it simply means he went out to town.
Becoming a Buddhist monk; entering the priesthood (archaic usage — in older texts '家出' can mean leaving home to become a monk).
中世の史料には『彼は家出して得度した』とあり、そこでは出家の意味で使われている。
Medieval records say 'he 家出して was ordained', where the term is used to mean he became a monk.