υἱός
huiós · noun · “son”
Huios means son — and in the New Testament names both Jesus as the unique Son of God and believers as sons adopted into God’s family in him.
Huios names a son — biological, legal, or by adoption. The New Testament uses it for Jesus uniquely (“the Son of God”) and for believers who, through union with him, are adopted into God’s family.
Galatians 4 brings the two together: “Because you are sons (huioi), God has sent the Spirit of his Son into your hearts, crying, ‘Abba! Father!’” Sonship in Christ is the believer’s deepest identity.
Definition: a "son" (sometimes of animals), used very widely of immediate, remote or figuratively, kinship
KJV usage: child, foal, son
Reference gloss from Strong's Concordance (1890, public domain).
Original BibleDawn word study. Original-language data and the public-domain Strong's (1890) gloss are referenced; see sources.