Leader of the Opposition
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Opposition (astronomy and astrology)
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Official Opposition (United Kingdom)
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Syrian opposition
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Leader of the Opposition (Greece)
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Official Opposition (Canada)
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Leader of the Opposition (New South Wales)
My Opposition: The Diaries of Friedrich Kellner
Leader of the Opposition in the Bagmati Provincial Assembly
Leader of the Opposition (Australian Capital Territory)
Leader of the Opposition (Portugal)
Leader of the Opposition (Japan)
Official Opposition Shadow Cabinet (United Kingdom)
Leader of the Opposition (Scotland)
2024 Syrian opposition offensives
Opposition to United States involvement in the Vietnam War
Oppositional defiant disorder