Being able to say its used in your country/language as well
I think this would be especially useful for languages like Spanish, where words can be specific to one country, but also a region of countries sharing a similar indigenous language.
Audio Recordings
Adding the functionality to add audio recordings to entries, to further understand how something is pronounced.
Community Notes
Adding comments to entries to give them further context.
Create dictionaries
Being able to add entries to dictionaries, creating lists of words following a certain language or theme.