lungs
n. countable A2 Elementary US //ˈɫəŋz// UK //lˈʌŋz// lungs
n. the two parts inside your chest that you use for breathing. They take in oxygen from the air and get rid of waste gas.
n. the pair of respiratory organs in the chest that oxygenate the blood and remove carbon dioxide. Plural in most general contexts unless referring to a specific anatomical side.
Take a deep breath to fill your lungs with air.
The doctor listened to the patient's lungs to check for any signs of infection or congestion.
The capacity of the human lungs can be significantly increased through consistent aerobic exercise, which improves the efficiency of gas exchange across the alveolar membranes.
Usage
Almost always used in the plural form 'lungs' when referring to the organ system.