the process of taking air into and expelling it from the lungs
his breathing was shallow
a sign in Greek (῾ or ᾿) indicating the presence of an aspirate (rough breathing) or the absence of an aspirate (smooth breathing) at the beginning of a word
take air into the lungs and then expel it, especially as a regular physiological process
she was breathing deeply
breathe in through your nose
he breathed out heavily
we are polluting the air we breathe