Hawk and dove
Semantic shift that have remained popular since the Vietnam War, when (1) hawk came to be used frequently for supporters of the war and (2) dove for its opponents, extending the meaning of these words from the combative nature of hawks and the symbolically peaceful role of doves.
Mouse and bookmark
Today, computers users utilize a mouse and bookmark Internet addresses. These new meanings did not replace earlier ones but extended the range of application for the words mouse and bookmark."
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