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What does AO stand for?

AO stands for Australian Open (tennis tournament)

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Organizations, NGOs, schools, universities, etc.

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Other Resources:
We have 60 other meanings of AO in our Acronym Attic

Samples in periodicals archive:

Murray's chances of winning the Australian Open are still considered at a remote fourth place, with the top three ranked players still in contention for winning the Australian Open.
2am Tennis, Australian Open (Eurosport) 4am Tennis, Australian Open (Eurosport) 10am Tennis, Australian Open (Eurosport) 11am Alpine Skiing World cup, Cortina D'Ampezzo (Eurosport 2) 3.