Technologies for creating a digital link between an acronym in an electronic document and a definition that is retrievable by an online system include receiving digital data that includes the acronym and a current usage context; where the acronym and the current usage context form an acronym-usage context pair; creating, as digital output in response to the digital data, a link between the acronym-usage context pair and the definition; where a similarity metric is used to select the definition from different stored definitions of the acronym; where the similarity metric is determined by computer program instructions mathematically comparing the current usage context to usage context data of at least one of the different stored definitions of the acronym; where the link is traversable to cause display of the definition on a display device in response to a display of the acronym on the display device.