Yeah I agree with what the person said above
Jim Crow laws were a collection of state and local statutes that legalized racial segregation.
Jim Crow laws were based on the theory of white supremacy and were a reaction to Reconstruction. In the depression-racked 1890s, racism appealed to whites who feared losing their jobs to blacks.
The Oxford English Dictionary is best for finding the "Descriptive" meaning. This is the literal meaning, known also as denotative. It can also help you with figurative meanings, but it is not its primary purpose.
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You didn't include the answers given but I would say exeunt.
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That's because a "romantic novel is based on a relationship between two characters in the story." In other novels such as horrors, comedy, detective, or science fiction they have a different basis and will be about different things. For example a detective novel will be about one person who solves crimes and the adventures he has while solving those crimes.
Hope this helps.