4 occurrences in 4 dictionaries
Reference: Besai
Hastings
Nethinim who returned with Zerub. (Ezr 2:49; ='/Nehemiah/7/52/type/common'>Ne 7:52; = Basthai, 1Es 5:31).
Morish
Be'sai
Ancestor of some Nethinim, who returned from exile. Ezr 2:49; Ne 7:52.
Smith
Be'sa-i
(sword). "Children of Besai" were among the Nethinim who returned to Judea with Zerubbabel.
Ezr 2:49; Ne 7:52