Breathing vs Respiratory

When to use each in English, with meaning, register, and examples.

 BreathingRespiratory
MeaningThe act of taking air into and out of your lungs.Related to breathing and the lungs.
Register-formal
CEFR levelB1-
Part of speechnoun
Usage notesUsed in both everyday conversation and more serious contexts. Not typically used in slang. Can describe both voluntary and involuntary actions.Used primarily in medical contexts. Avoid casual conversation. Can describe diseases or conditions related to the lungs.

Frequently asked questions: Breathing vs Respiratory

What's the difference between "Breathing" and "Respiratory"?

"Breathing" means: The act of taking air into and out of your lungs. "Respiratory" means: Related to breathing and the lungs.

When should I use "Breathing" and "Respiratory"?

"Respiratory" is formal.