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PTO

noun [C]
 
 
/ˌpiː.tiːˈəʊ/ US  /-ˈoʊ/ mainly US

Definition

abbreviation for parent-teacher organization → See parent-teacher associationSchools in generalNamed organizations and societies and their members
(Definition of PTO noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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