Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym PIS is...

PIS is

Phuket International School (Quality Schools International)

More Meanings For PIS:

Please Ignore Seriously
Phuket International School (Quality Schools International)
Project Information System
Perfectly Inelastic Supply
Progressive Induction System
Passenger Information System
Politiets Indsats Styrke
Poitiers, France

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