In previous builds of PolyAnalyst the only way to stop a word from showing up in the spell checker was to add it to the morphology dictionary. This would sometimes result in having to add things to the morphology dictionary that might not really belong there, such as product codes (Model ACBXYZ) and the occasional single foreign word (e.g. yukata). In order to prevent this dictionary mismatch PolyAnalyst now includes stoplist functionality for spellchecking. In other words you can define a list of words for the spellchecker to ignore without assigning them as actual English words.