pp

Từ điển Oxford Advanced Learner 8th

pp [pp] BrE NAmE abbreviation
1. pp.pages
•See pp. 100–117.
2. (also p.p.) (especially BrE)used in front of a person's name when sb signs a business letter on his/her behalf
•pp Chris Baker (= from Chris Baker, but signed by sb else because Chris Baker is away)
3. (music)very quietly (from Italian ‘pianissimo ’)