Definitions from Wiktionary (Oop)

▸ verb:  (programming, informal) To use object-oriented programming for a task.
▸ noun:  (programming, uncountable) Initialism of object-oriented programming. [(programming) A programming paradigm that uses hierarchies of objects, instantiated from templates called classes, to design applications and computer programs.]
▸ noun:  (tennis) Initialism of order of play (“the schedule of contests in a tennis event”).
▸ noun:  (Internet) Initialism of original original poster (“the poster of quoted material”).
▸ adjective:  (publishing) Initialism of out of print.
▸ adjective:  (poker) Initialism of out of position.
▸ adjective:  Abbreviation of out of pocket. [Of or pertaining to the spending of cash rather than using credit.]
▸ adverb:  (regional) Pronunciation spelling of up. [Indicating movement towards or location at a higher place or position.]

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