בן בית

Compound of בֶּן (ben, “son of”) +‎ בַּיִת (báyit, “house”). In Hebrew, the expression "son of" may be used to express a person's origin, e.g. בְּנֵי בָבֶל (literally “sons of Babylon”), meaning people of Babylon (Ezekiel 23:15).

• (Modern Israeli Hebrew) IPA^(key): /ˌben ˈbajit/

בֶּן־בַּיִת • (ben báyit) m

1. (Biblical Hebrew) verna, a slave born in his master's household
   • Tanach, Genesis 15:3, with translation of the Jewish Publication Society:

     וַיֹּאמֶר אַבְרָם הֵן לִי לֹא נָתַתָּה זָרַע וְהִנֵּה בֶן־בֵּיתִי יוֹרֵשׁ אֹתִי׃

     And Abram said: ‘Behold, to me Thou hast given no seed, and, lo, one born in my house is to be mine heir.’

2. (modern) a family member (a member of the household)
3. (modern, by extension) a close friend of the family, like a family member
   • 2010 December 23, “הנער שהתעללו בו: נתתי הכל, החזירו כאב וסבל”, in ynet‎^[1]:

     התוקף היה בן בית אצלנו

     hatokéf hayá ben báyit etslénu

     The attacker was like family to us

     (literally, “The attacker was "a son of the house" to us”)