It means "returning home". It's normally a term to refer to either a secular Jew who becomes religious or a person who converts to Judaism.
House of return
The population of Beit Duqqu is 1,600.
The population of Beit Hanina is 26,762.
Beit HaEmek was created in 1949.
Beit HaGadi was created in 1951.
Beit Hilkia was created in 1953.
Beit Einun's population is 1,809.
The population of Beit Ula is 10,885.
The population of Beit Dagan is 6,800.
Beit Dagan was created in 1948.
Beit Eshel was created in 1943.
The population of Beit Iba is 3,268.