HN
HN is used as the abbreviation for Honduras, the Central American country, and also for Hanoi, the capital city of Vietnam, especially in travel and logistics contexts.
Medical
High Nitrogen
Health Nurse
Haemorrhage of Newborn
head & neck–usually, H&N
Head Nurse
Health Notice–usually, Department of Health Notice or Public
Hereditary Nephritis
Heymann’s nephritis
Haemagglutinin Neuraminidase
Miscellaneous
Hook Norton
Holding Nothing
Heure Normale
Histoires Naturelles
Handler Number
Hotel Name
Homonym Number
Harold Nestler
Heavy Nu
High Needs
Hava Nagila
Host Name
Hot Neighbor
Hemligt Nummer
Harry Nixon
Ha Noi
Habibi Net
Hemagglutinin Neuraminidase
Hell No
Hardware Networking
Hacker and