There are 2 definitions of PDA in English:

PDA1

Line breaks: PDA
Pronunciation: /piːdiːˈeɪ
 
/

noun

A palmtop computer that functions as a personal organizer but also provides email and Internet access.

Origin

1990s: abbreviation of personal digital assistant.

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Definition of PDA in:

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Word of the day crowdsource
Pronunciation: ˈkraʊdsɔːs
verb
obtain (information) by enlisting help of many people…

There are 2 definitions of PDA in English:

PDA2

Syllabification: PDA

Entry from US English dictionary

abbreviation

informal Public display of affection.

More definitions of PDA

Definition of PDA in:

Get more from Oxford Dictionaries

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Word of the day crowdsource
Pronunciation: ˈkraʊdsɔːs
verb
obtain (information) by enlisting help of many people…