ap

pref. of, from

AP may refer to: CompaniesAssociated Press, an American news agencyA&P, the common name of the Great Atlantic and Pacific Tea CompanyThe IATA code for Air OneAllied Press, a major New Zealand newspaper companyAeroklub Polski, the Polish central association of persons practising air sports or recreational flying
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The Associated Press, or AP, is an American news agency, and is the world's largest such organization. The AP is a cooperative owned by its contributing newspapers, radio and television stations in the United States, who both contribute stories to it and use material written by its staffers. Many newspapers and broadcasters outside the United States are AP subscribers — that is, they pay a fee to use AP material but are not members of the cooperative.
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AP action potential ; angina pectoris ; anterior pituitary ; anteroposterior ; arterial pressure. AP abbr. anteroposterior AP 1. anterior-posterior. [more]AP - Community and Resources

Alianza Popular (political party in Spain)

a priori, from cause to effect, deductive, valid independently of observation, formed or conceived beforehand