All 5 Uses

adversary
in
Killing Kennedy
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The slim white Atlas rocket blasted off without incident, proving that the United States was catching up in the space race, which was going strong, with the Soviet Union having just this week reached an agreement to share outer space research with America's cold war adversaries.†
p. 71.1

adversaries = opponents
He does not see a worthy adversary in Kennedy.†
p. 89.6 *

adversary = opponent
But there's a problem: Khrushchev is surprised to learn that his adversary, John Kennedy, is deadly serious about defending his country at all costs.†
p. 124.3
Khrushchev tried to bully his younger adversary on the subject of West Berlin, hoping to take control of the entire city because more and more citizens of Soviet-controlled East Berlin were risking their lives in the name of freedom by escaping into the adjacent territory controlled by the United States and her World War II allies.†
p. 125.5
On an even larger scale, Johnson asked Hoover to dig up information on some twelve hundred real or imagined adversaries.†
p. 299.5

adversaries = opponents

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