AOalso: エーオーFreq.FrequencyTop 20,000Meanings1nounadmissions officeabbreviationAbbreviation of アドミッションオフィス, used mainly in university contexts.See also: アドミッションオフィスAO入試えーおーにゅうしの出しゅつ願がんはAOで受うけ付つけています。Applications for the AO entrance exam are accepted at the admissions office.Usage patternsAO入試えーおーにゅうしを受うけるto take an AO (admissions-office) entrance exam彼かの女じょは大だい学がくのAO入試えーおーにゅうしを受うけることにした。She decided to take the university's AO entrance exam.