As nouns the difference between pneumonia and flu
is that pneumonia is an acute or chronic inflammation of the lungs caused by viruses, bacteria or other microorganisms, or sometimes by physical or chemical irritants while flu is influenza.
pneumonia
Noun
An acute or chronic inflammation of the lungs caused by viruses, bacteria or other microorganisms, or sometimes by physical or chemical irritants.
* '>citation
Derived terms
* single pneumonia
* double pneumonia
flu
English
(Influenza)
Alternative forms
* 'flu (dated), floo (dated)
Noun
(
en noun)
Influenza.
(informal) Common cold.
Synonyms
* (influenza) grippe, grip
Derived terms
* avian flu
* bird flu
* blue flu
* diplomatic flu
* Spanish flu
* stomach flu
* swine flu