IXL Learning, a developer of personalized learning products used by millions of people globally, completed the acquisition of Dictionary.com, the premier online English-language dictionary, and Thesaurus.com, a collection of synonyms and antonyms. Financial terms were not disclosed. "In a world brimming with countless words, Dictionary.com is a trusted guide that helps people navigate the English language and express themselves. We are excited to collaborate and take significant strides together toward making education more engaging and accessible," Paul Mishkin, IXL Learning CEO.