We found one dictionary that defines the word pp-1:

Miscellaneous (1 matching dictionary)

1. PP-1: Acronym Finder

▸ Words similar to pp-1 ▸ Usage examples for pp-1 ▸ Idioms related to pp-1 ▸ Wikipedia articles (New!) ▸ Words that often appear near pp-1 ▸ Rhymes of pp-1 ▸ Invented words related to pp-1