Brown Driver Briggs

 1. to be just, be righteous
  1) (Qal)
1a1. to have a just cause, be in the right
1a2. to be justified
1a3. to be just (of God)
1a4. to be just, be righteous (in conduct and character)
  2) (Niphal) to be put or made right, be justified
  3) (Piel) justify, make to appear righteous, make someone righteous
  4) (Hiphil)
1d1. to do or bring justice (in administering law)
1d2. to declare righteous, justify
1d3. to justify, vindicate the cause of, save
1d4. to make righteous, turn to righteousness
  5) (Hithpael) to justify oneself