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Scroll back through the last year, and the same words come up again and again.

The top-trending terms of 2025, from artificial intelligence to Zohran Mamdani, shaped headlines across politics, conflict, technology and climate.

As the year comes to a close, AJ Labs has compiled an A to Z list of names, places and issues that generated sustained interest throughout 2025, according to a loose analysis of our own most-viewed story tags and those that appeared in Google’s most searched.