To breathe is to inhale and exhale air. The air contains oxygen which is necessary for human life. If you don’t breathe, you will die.

• Breathe in. Breathe out. Breathe in. Breathe out…
• He’s breathing.
• She’s not breathing. Someone needs to call a doctor.
• Everyone likes to breathe in fresh air.
• You can breathe underwater with scuba gear.

She’s using scuba gear to breathe.

The noun form of this word is “breathing.”

• Her breathing became labored, so she went to see a doctor. (labored = difficult)
• Breathing in a smoke-filled room is uncomfortable.
• Her breathing was affected by the smoke.

cigar smoke

The adjective form of this word is “breathing.”

• He needed a breathing tube when he was in the hospital.
• A fire-breathing dragon scared everyone in the town.

 dragon

Notice the difference in pronunciation between the words “breathe” and “breath.”

breathe / breath

The word “breathe” has a voiced “th” sound.

The word “breath” has an unvoiced “th” sound.