|Easton's Bible Dictionary|
Eunuch, had charge of the harem of Ahasuerus (Esther 2:8).
Int. Standard Bible Encyclopedia
he'-ga-i, he'-ge (heghay; Gai (Esther 2:8, 15), and heghe', Hege (Esther 2:3)): One of the officers of the Persian king Ahasuerus; a chamberlain or eunuch (keeper of women), into whose custody the "fair young virgins" were delivered from whom the king intended to choose his queen in the place of the discredited Vashti.
Hegai (3 Occurrences)
Esther 2:3 Let the king appoint officers in all the provinces of his kingdom, that they may gather together all the beautiful young virgins to the citadel of Susa, to the women's house, to the custody of Hegai the king's eunuch, keeper of the women. Let cosmetics be given them; (WEB JPS ASV BBE DBY NAS RSV NIV)
Esther 2:8 So it happened, when the king's commandment and his decree was heard, and when many maidens were gathered together to the citadel of Susa, to the custody of Hegai, that Esther was taken into the king's house, to the custody of Hegai, keeper of the women. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Esther 2:15 Now when the turn of Esther, the daughter of Abihail the uncle of Mordecai, who had taken her for his daughter, came to go in to the king, she required nothing but what Hegai the king's eunuch, the keeper of the women, advised. Esther obtained favor in the sight of all those who looked at her. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)