4 occurrences in 4 dictionaries
Reference: Gabbai
Hastings
A Benjamite (Ne 11:8, but text doubtful).
Morish
Gab'bai
Benjamite who returned from exile. Ne 11:8.
Smith
Gab'ba-i
(tax gatherer), apparently the head of an important family of Benjamin resident at Jerusalem.
Ne 11:8
(B.C. before 536.)