4 occurrences in 4 dictionaries
Reference: Shuni
Hastings
A son of Gad (Ge 46:16; Nu 26:15 (24) [gentilic Shunites]).
Morish
Shu'ni Shunites. Shu'nites
Son of Gad, and his descendants. Ge 46:16; Num. 26: 15.