breath vs shortness of breath

breath

• The act or process of breathing. 

• A single act of breathing in or out; a breathing of air. 

• Air expelled from the lungs. 

• A rest or pause. 

• A small amount of something, such as wind, or common sense. 

• voiceless, surd; contrasting with voice (breath sounds, voice sounds) 

shortness of breath

• difficulty in breathing; dyspnea