Definition of "Breath" :

noun: the process of taking in and expelling air during breathing

"He took a deep breath and dived into the pool."

noun: an indirect suggestion

"Not a breath of scandal ever touched her."

noun: a slight movement of the air

"There wasn't a breath of air in the room."

noun: the air that is inhaled and exhaled in respiration

"His sour breath offended her."

noun: a short respite