AIR [U] › the air that comes out of your lungs: His breath smells of garlic. ACTION [C] › when air goes into or out of your lungs: She took a deep breath before she started.
be out of breath › to be breathing quickly because you have been running, walking fast, etc
catch your breath; get your breath back › to rest for a short time until you can breathe regularly again
under your breath › If you say something under your breath, you say it very quietly so that other people cannot hear it.
hold your breath › to keep air in your lungs and not let it out: How long can you hold your breath under water?
don't hold your breath humorous › something that you say in order to tell someone that an event is not likely to happen: He said he'd phone, but don't hold your breath.