Hebrew word meaning mighty one or warrior, about 160 times. From root gabar (to be strong). Describes human heroes and God — El Gibbor ('Mighty God') is messianic title (Isa 9:6).
David's elite warriors were gibborim (2 Sam 23). Carries ambivalence — heroes or oppressors. Applied to God, reaches highest meaning: the LORD is gibbor who saves (Zeph 3:17).
Root generates geburah (strength), gabar (to prevail). Messianic El Gibbor merges divine might with tenderness of a child — gospel paradox.