Brown Driver Briggs

 1. to blow, clap, strike, sound, thrust, give a blow, blast
  1) (Qal)
1a1. to thrust, drive (of weapon)
1a2. to give a blast, give a blow
1a3. to strike or clap hands
  2) (Niphal)
1b1. to be blown, blast (of horn)
1b2. to strike or pledge oneself