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.
beit tshuvah = בית תשובה
House of return
Beit Einun's population is 1,809.
Beit She'arim was created in 1926.
Beit Yatir was created in 1979.
Beit Nehemia was created in 1950.
Beit Zaid was created in 1951.
The population of Beit Alfa is 1,100.
The population of Beit Amin is 1,147.
Beit Berl was created in 1970.
Beit Yanai was created in 1933.
Beit Ezra was created in 1950.