To make something ordinary, uninteresting, or commonplace by overuse or repeated discussion.
From banal + -ize (to cause to become). The French banaliser already existed before English adopted the verb form in the mid-20th century during intellectual exchanges about mass culture.
Social media actually banalizes serious issues—a major tragedy trends for 3 days then disappears, making each successive tragedy feel less shocking because we've 'already seen this story.'
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