Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for interpreting search queries. In one aspect, a method includes receiving a search query. The method also selects a disambiguated interpretation of the search query based on analysis of stored search queries and analysis of stored responses of users having a similar characteristic as the user that initiated the search query. The method also provides a set of the search results. The set is selected based on the disambiguated interpretation of the search query.