Apparently a primary word; a "son" (sometimes of animals), used very widely of immediate, remote or figuratively, kinship -- child, foal, son.

υἱὲ (uie) − 9 Occurrences

υἱοὶ (uioi) − 33 Occurrences

υἱοῖς (uiois) − 7 Occurrences

υἱὸν (uion) − 85 Occurrences

υἱὸς (uios) − 161 Occurrences

υἱοῦ (uiou) − 36 Occurrences

υἱοὺς (uious) − 14 Occurrences

υἱῷ (uiō) − 15 Occurrences

υἱῶν (uiōn) − 17 Occurrences