Mechanisms for providing a social network aware input dictionary are provided. A social network of users is monitored to determine the words and terms utilized by the users as part of their communication and interaction within the social network. Words and terms are ranked, or prioritized, within the social network based on a determined increase/decrease in popularity of the words/terms as determined from the monitoring of the social network. Based on the ranking of these words/terms, individual input dictionaries associated with devices used by the users of the social network may be automatically updated to include/remove these words/terms and/or increase/decrease a relative priority of the words/terms within the input dictionaries. Such automatic updating may be performed regardless of whether the particular user has used the word/term or not.