To emit through the excretories of the skin or lungs; send off in vapor; exhale.To send out an exhalation; exhale.To pass through or out of some body, as an exhalation; specifically, to be emitted through the excretories of the skin or lungs; exhale; pass off from the body in vapor, as in insensible perspiration.In botany to exhale watery vapor. See transpiration. 2.To escape from secrecy; become public gradually; come to light; ooze out.To happen or come to pass; occur.