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* ''DGG cell ID''. Identifier of a cell of a [[discrete global grid]]: a [[Geohash]] code (e.g. ~0.023 km<sup>2</sup> cell '''<code>6vjyngd</code>''' at the [[National Congress of Brazil|Brazilian's center]]) or an [[Open Location Code|OLC]] code (e.g. ~0.004 km<sup>2</sup> cell '''<code>58PJ642P+4</code>''' at the same point).
* ''Postal code''. Polygon of a [[postal code|postal area]]: a [[Código de Endereçamento Postal|CEP]] code (e.g. '''<code>70040</code>''' represents a Brazilian's central area for postal distribution).
The [https://www.iso.org/standard/70742.html ISO 19112:2019] standard (section 3.1.2) adopted the term "geographic identifier" instead geocode, to encompass long labels: ''spatial reference in the form of a label or code that identifies a ___location''. For example, for ISO, the country name “People's Republic of China” is a label.
Geocodes are mainly used (in general as an [[Primitive data type|atomic data type]]) for [[labelling]], [[data integrity]], [[geotagging]] and [[Spatial database#Spatial index|spatial indexing]].
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