[ESRI software]
An element in the Catalog tree. Items include data sources, such as shapefiles and geodatabases, and nonspatial elements, such as folders.
[ESRI software]
In coverages, a field or attribute.
[ESRI software]
A column of information in an INFO table.
[Internet]
In ArcGIS Online, a map, layer, or tool that you find, use, or add to ArcGIS Online.