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answer : An answer is the result of search that the user saves in the form of a visualization, such as a table or a chart.

authentication : The process of verifying user credentials, and letting them long into ThoughtSpot.

filter : This is a column value that a user can add to search.

formula : This is an expression that applies a calculation, usually a mathematical calculation, to data.

group aggregation : This enables you to aggregate a value by a specific attribute. Also known as *pinned aggregation* or a *level-based measure*.

impression : An impression registers when a user enters text into a search bar, or loads a *pinboard*.

pinboard : This is a collection of related *answers*, or search results, that appear as tables or visualizations.

pinned measure : This enables you to aggregate a value by a specific attribute. Also known as *group aggregation*, or a *level-based measure*.

reportbook : This is an internal name for a *visualization*.

search : This is a query in ThoughtSpot. We call this search because ThoughtSpot queries enable the user to find business information as efficiently as using an Internet search engine.

token : The text that users enter in the search bar. This includes keywords, column names, and formula names.

user : Individuals that can log into ThoughtSpot. See *authentication*.

visualization : This is a visual representation of data. In ThoughtSpot, it is the representation of an *answer*. In some cases, we use the terms *visualization* and *answer* interchangeably.

viz : This is a common abbreviation for *visualization*.