Today's word is: particular (adjective).
It's used: before nouns to emphasise that you are talking about a specific or special person or thing and not something else. (It does NOT mean 'private' or 'personal' like the same word in Spanish/Catalan.)
Example 1: Is there any particular English topic that you would like me to cover in the Daily Vitamin?
Example 2: According to recent polls in Catalonia, street crime is an issue of particular concern.
Have a good day!