Englishfor English speakers
contra
Preposition
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against; in opposition or contrast to
Consider the problems of the nurse contra those of the doctor.
contra
Noun
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A contra was a member of a particular guerrilla group in Nicaragua.
rudder
Noun
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A rudder is a blade underwater that is used to steer a ship or boat.
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A rudder is a part of the vertical stabilizer of an aircraft.