Mavet (H4194) is the standard Hebrew word for death. It appears as both a noun and a proper name — Death personified as a devouring power (Habakkuk 2:5; Hosea 13:14). The realm of the dead (Sheol) is closely associated. Death entered through sin (Genesis 2:17) and is the last enemy to be defeated.
The Hebrew Bible's treatment of mavet is strikingly honest — death is real, threatening, and antithetical to life with God. Yet the OT also contains seeds of death's defeat: 'Where, O Death, are your plagues? Where, O Sheol, is your sting?' (Hosea 13:14). Paul quotes this in 1 Corinthians 15 to announce that Christ has swallowed mavet in victory — the resurrection is the ultimate answer to death.