Encyclopedia Britannica (owner of Merriam-Webster dictionary) have filed a lawsuit against OpenAI, alleging in its complaint that the AI giant has committed "massive copyright infringement" using their content to train ChatGPT.
One to watch.
https://techcrunch.com/2026/03/16/merriam-webster-openai-encyclopedia-brittanica-lawsuit/

https://mothcloud.com/micropost/dictionary-sues-openai-chatgpt-for-copyright/