| Feature | Larousse | RAE (Real Academia) | WordReference | María Moliner | | :--- | :--- | :--- | :--- | :--- | | | Very High | Low (very technical) | High | Medium | | PDF Availability | None (official) | None (official) | None (official) | Rare (out of print) | | Best For | Students, everyday use | Academics, purists | Translators, forums | Deep literature | | Regionalisms | Includes Mexican, Argentinian, Spanish variants | Mostly Peninsular Spanish | Excellent (user driven) | Standard Spanish |