Allowing users of a network based multiple user tagging system to use any phrase they feel is relevant to the resource can lead to ambiguities within the system. For example, a user may tag a picture of a gift with the keyword “bow”. Another user may tag a picture of a bow and arrow with the keyword “bow”. This may cause a problem for someone searching with the keyword “bow” when looking for information about making a bow for a gift. The user looking for gift bows does not want to see search results for bows and arrows. Functionality can be implemented in a folksonomy tagging system to disambiguate tags by associating them with definitions. Associating ambiguous tags with appropriate definitions will increase search accuracy for users of folksonomy tagging systems, thus allowing users to find relevant information more efficiently.