To take air into the lungs and then expel it.

साँस लेना

English Usage: She tried to breathe deeply to relax.

Hindi Usage: उसने आराम करने के लिए गहरी साँस लेने की कोशिश की।

The air that is taken into or expelled from the lungs.

सांस

English Usage: Take a deep breath before you speak.

Hindi Usage: बोलने से पहले एक गहरी सांस लो।