Flipaword.com -

It functions as a Chrome extension that replaces select words on the websites you visit with their translations in your target language.

Users are quizzed on these "flipped" words as they browse, helping to integrate vocabulary into daily life without dedicated study sessions. Flipaword.com

In the realm of physical education, refers to a series of interactive books by Yukiko Kido . It functions as a Chrome extension that replaces

These books are designed for early readers to learn word families (e.g., words that rhyme like "stop" and "pop"). Flipaword.com