(n) Parkinson's disease
(n) business, conference, etc. facility in a park (wasei: park center)
(n) percolator
(n) (comp) persistence
(n) perception
(n) perceptron
(P)
(n) (comp) percentile
(n) percentage
(n) (comp) percent sign
(n) (comp) personalize
(n) personality
(n) person call
(n) parchment paper
(n,vs) partition
cubicle
(n) part-timer
(P)
(n) (comp) partner relation
(n) permission
(n) newspaper with a lot of advertisements and delivered for free of charge (wasei: free paper)
(n) helper T cell
helper cell
(n) hen party
(n) (comp) vaporware
(n) vapor lock
(n) vapor lock
(n) paper cup
(n) paper towel
(n) written test (wasei: paper test)
(n) paper-knife
(n) paperback
(n) paper plan
(n) paperwork