Answer: venting

AnswerCrossword Clue
VENTINGLetting out.
VENTINGShowing rage
VENTINGPurpose of many letters to the editor
ventingPermit air to enter (a beer cask)
ventingGive free expression to (a strong emotion)
ventingDischarge or expel (air, gas, or liquid) through an outlet
ventingan airhole (a hole for the passage of air)
ventingProvide with an outlet for air, gas, or liquid