Techniques for outputting different reference work entries based on an amount of force applied to a touch-sensitive display of a device. For instance, when a user reads an electronic book (eBook) on a device having a touch-sensitive display, the user may make a selection of a word or phrase within the eBook by touching the display at a location of the word or phrase. The techniques may then determine which of multiple different reference work entries to output based on a measured amount of force of the selection. For instance, the device may output a dictionary definition of the selected word in response to measuring a first amount of force, while outputting a thesaurus entry for the word in response to measuring a second, greater amount of force.