1. pn - Noun
2. pn - Preposition
Initialism of part number.
(medicine) Abbreviation of practical nurse.
(Malaysia, politics, uncountable) Initialism of Perikatan Nasional (“National Alliance”).
Initialism of proportional navigation.
PN (plural PNe or PNs)
(astronomy) Initialism of planetary nebula.
pn
(stenoscript) Abbreviation of upon.