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To inhale. A noun (or pronoun) can be used between "breathe" and "in" to indicate the specific substance being inhaled. The doctor held the stethoscope to my chest and asked me to breathe in. After many years of breathing in pollution, I now have asthma. Breathe the fresh air in and try to relax.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
breathe something in
to take something into the lungs, such as air, medicinal vapors, gas, etc. Breathe the vapor in slowly. It will help your cold. Breathe in that fresh air!
to inhale; to take air into the lungs. Now, relax and breathe in. Breathe out. Breathe in deeply; enjoy the summer air.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
1. To inhale: Don't forget to breathe in and hold your breath before you jump into the water!
2. To take something into the lungs by inhaling: My lungs are unhealthy because I've been breathing in smoke from the factory for so many years. There is poisonous gas here; don't breathe it in.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.