This paper specifically addresses the question of polysemy with respect toverbs, and whether or not the sense distinctions that are made in on-linelexical resources such as WordNet are appropriate for computational lexicons.The use of sets of related syntactic frames and verb classes are examined as ameans of simplifying the task of defining different senses, and the importanceof concrete criteria such as different predicate argument structures, semanticclass constraints and lexical co-occurrences is emphasized.