PSI

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See also psi

English[edit]

Initialism[edit]

PSI

  1. Pounds per square inch.
  2. Pre-Sentence Investigation.
  3. Protein Structure Initiative.
  4. Pollutant Safety Index or Pollutant Standard Index (measurement of the air pollutant such as haze)
  5. (Singapore) Please Stay Indoors

Anagrams[edit]

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