This noun denotes a ransom or redemption price paid to free someone. Paul uses it in 1 Timothy 2:6 describing Christ 'who gave himself as a ransom for all.' Classical usage included both literal ransom payments and metaphorical redemption. The compound (ἀντι-λυτρον) combines 'in exchange for' with 'ransom,' emphasizing the substitutionary nature—one thing given in exchange for another. Spanish 'rescate,' French preservation of the Greek, and German 'Lösegeld' (ransom money) all indicate payment that secures release.