As a symbol hn
is .
As a noun flu is
influenza.
hn
Not English
Hn has no English definition. It may be misspelled.
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