Describing physical sensations:
* After the race, I was breathless and exhausted.
* She ran up the stairs, leaving her breathless and dizzy.
* The thin air at high altitude left him feeling breathless.
Describing emotional states:
* He stood there, breathless with excitement.
* The beauty of the sunset left her breathless.
* The news left her breathless with shock and grief.
Figurative language:
* The story was so suspenseful, it left me breathless.
* Her performance was breathless and inspiring.
* The cityscape at night was breathlessly beautiful.
As a verb:
* The child breathlessly recounted his adventure.
* The crowd breathlessly awaited the announcement.
The specific meaning of "breathless" will depend on the context of the sentence.