PSI

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See also psi

[edit] English

[edit] Initialism

PSI

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

[edit] Anagrams

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Categories: English abbreviations, acronyms and initialisms | English initialisms | Singapore English | Singlish

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