lungs

Noun

lung (plural lungs)

1. A biological organ of vertebrates that controls breathing and oxygenates the blood.
   • I made a speaking trumpet of my hands and commenced to whoop “Ahoy!” and “Hello!” at the top of my lungs. […] The Colonel woke up, and, after asking what in brimstone was the matter, opened his mouth and roared “Hi!” and “Hello!” like the bull of Bashan.1913, Joseph C[rosby] Lincoln, chapter VII, in Mr. Pratt’s Patients, New York, N.Y.; London: D[aniel] Appleton and Company, →OCLC

   Synonyms:

   bellows, lights

2. (in plural) Capacity for exercise or exertion; breath.
   • He no longer has the lungs to play long rallies like he used to.
3. That which supplies oxygen or fresh air, such as trees, parklands, forest, etc., to a place.
   • Afterwards he found that the vague feeling of alarm had spread to the clients of the underground railway, and that the Sunday excursionists began to return from all the South-Western "lungs" - Barnes, Wimbledon, Richmond Park, Kew, and so forth - at unnaturally early hours[.]1898, H.G. Wells, The War of the Worlds, London: William Heinemann, page 123

See all 4 meanings of lung