Currently becoming popular or widely discussed, especially online.
From the verb *trend*, based on Old English *trendan* “to turn.” The modern social‑media sense of *trending* took off in the early 2000s with platforms that tracked what topics were gaining attention.
When something is “trending,” it’s not just popular—it’s actively climbing. Algorithms track millions of tiny human decisions and turn them into one label: this is what the world is paying attention to right now.
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