In WordSmith, a stop list is used in order to avoid seeing some words, usually high-frequency words. The idea of a match-list is to be able to compare all the words in your word list with another list in a plain text file and then do one of a variety of operations such as deleting the words which match, deleting those which don't, or just marking the ones in the list.
For both, you can define your own lists and save them in plain text files.
See also: lemma lists
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