Strong's #1366: distomos (pronounced dis'-tom-os)
 from 1364 and 4750; double-edged:--with two edges, two-edged.
Thayer's Greek Lexicon:
 ́ 
 
  distomos 
 
 1) having a double mouth as a river
 
 1a) used of the edge of the sword and of other weapons, so has the meaning of two-edged
 
  Part of Speech: adjective
Relation: from G1364 and G4750
 
Usage:
This word is used 3 times:
Hebrews 4:12: "sharper than any  two-edged sword, piercing even to"
Revelation 1:16: "mouth went a sharp  two-edged sword and his countenance"
Revelation 2:12: "the sharp sword  with two edges;"