breathe a sigh of relief

breathe a word

To divulge even part of a secret (usually used with a negative).

breathe down someone's neck

To follow or supervise someone too closely, causing discomfort for that person.

breathe easy

To relax or feel secure about something.

breathe one's last

To die.

eat, breathe, and sleep

To devote one's time obsessively to.

sigh of relief

A reassurance or support, something that reduces stress from an arduous activity.