what is the difference between breathe and breath
â¢ The word breath is used as noun. â¢ On the other hand, the word breathe is used as verb. This is the main difference between the two words. â¢ The word breath is used in the sense of âair taken in and out during breathingâ. â¢ On the other hand, the word breathe is used in the sense of âtake air into the lungs and then let it outâ. â¢ The word breathe is sometimes used with the expression âhis/her lastâ, and it gives the meaning of âdie.â This is used for both breath and breathe. His last breath, breathed her last.