In new MINE, dictionaries can be used as both Stop Word and Synonym.
To add a dictionary, go to Mine - Dictionaries and click on Add dictionary button at the top right corner.
In the dialog window that will be opened, you should give your dictionary a name, select a language for this dictionary, and enter the list of lemmas you want to be in the dictionary.
Important: After entering the list of lemmata, click on the Check button - all entered lemmata will be checked according to the lemmatization rules of the selected language and the dictionary will transform lemmata that aren't complaint with these rules to the correct form.
It is also possible to enter a sentence to the List of lemmata form. After a click on Check button, the whole sentence will be transformed into relevant lemmas. For example, a sentence "Mary and Samantha arrived at the bus station early but waited until noon for the bus." will be transformed into the following lemmata: mary, samantha, arrive, bus, station, early, wait, noon.