Brown Driver Briggs

 1. to scorn, make mouths at, talk arrogantly
  1) (Qal)
1a1. to boast
1a2. to scorn
  2) (Hiphil)
1b1. to mock, deride
1b2. to interpret (language)
1b  1) interpreter (participle)
1b  2) ambassador (fig.)
  3) (Hithpalpel) to be inflated, scoff, act as a scorner, show
oneself a mocker