Wiktionary is a collaborative multilingual dictionary. Definitions are detailed and the content is frequently updated.
Wiktionary is ad-free, and do not requires a login.
The English version contains more than 4 millions entries, and the search engine is efficient. Most definitions contains the etymology, pronunciation, noun, verb. It is also possible to jump from a language to another.
Sharing a definition will help your students to memorize it more than if you read it..
To share a definition with your classroom:
- Type one or few words in the search field and press enter
- Choose one of the results and open it
- Share to your classroom. Your students will see the definition, and can click on the links to view more definitions.