Collins Concise English Dictionary © HarperCollins Publishers::

pp abbreviation for
  1. past participle
  2. (in formal correspondence) per pro
  3. privately printed
symbol for
  1. pianissimo: an instruction to play very quietly
Etymology: (sense 2) Latin per procurationem: by delegation to
In formal correspondence, when Brenda Smith is signing on behalf of Peter Jones, she should write Peter Jones pp (or per pro) Brenda Smith, not the other way about
pp, PP abbreviation for
  1. parcel post
  2. prepaid
  3. post-paid
  4. (in prescriptions) post prandium
Etymology: Latin: after a meal



'pp' also found in these entries:
In the English description:

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