Strong's #3851: lahab (pronounced lah'-hab)
 from an usused root meaning to gleam; a flash; figuratively, a sharply polished blade or point of a weapon:--blade, bright, flame, glittering.
Brown-Driver-Briggs Hebrew Lexicon:
 
  lahab 
 
 1) flame, blade
 
 1a) flame
 1b) of flashing point of spear or blade of sword
 
  Part of Speech: noun masculine
Relation: from an unused root meaning to gleam
  Same Word by TWOT Number:  1077, 1077a
Usage:
This word is used 12 times:
Judges 3:22: "also went in after  the blade; and the fat closed upon the blade,"
Judges 3:22: "and the fat closed upon  the blade, so that he could not draw the dagger"
Judges 13:20: "For it came to pass,  when the flame went up toward heaven the altar, that the angel"
Judges 13:20: "the altar, that the angel of the LORD ascended  in the flame of the altar. And Manoah and his wife"
Job 39:23: "The quiver rattleth against  him, the glittering and the shield."
Job 41:21: "His breath kindleth coals,  and a flame of his mouth."
Isaiah 13:8: "at another; their faces shall be as flames.  shall be as flames."
Isaiah 29:6: "and great noise, with storm and tempest,  and the flame of devouring fire."
Isaiah 30:30: "of his arm, with the indignation of his anger,  and with the flame of a devouring fire, with scattering, and tempest,"
Isaiah 66:15: "his anger with fury, and his rebuke  with flames of fire."
Joel 2:5: "shall they leap, like the noise  of a flame of fire that devoureth the stubble, as a strong"
Nahum 3:3: "The horseman lifteth up  both the bright sword spear: and there is a multitude of slain,"