The best replacement for deep breath is deep breathe.

The best alternatives to deep breath are rated as following:
★★★★★  deep breathe
★★★★  yawn
★  draw essence
★  hope in a jar
  deep breath

Your alternative for deep breath is not listed? Suggest!
Speaking about deep breath, one probably shouldn't forget about chest pain.

Other search terms related to deep breath and their ratings are:
★★★★★ chest pain
★★★★★ pain
★★★★ back pain
★★ sharp pain
★ wheezing
★ shoulder pain
You have in mind a companion for deep breath and it is not yet here? Propose!



Google Trends

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deep breath
deep breathe
yawn