diff --git a/GLOSSAR.md b/GLOSSAR.md
index d46faaed..de53e5d0 100644
--- a/GLOSSAR.md
+++ b/GLOSSAR.md
@@ -1,10 +1,10 @@
 # Glossar
 
 #### Map
-An instance of the Utopia Map with its own name, its own users and [Items](#Item) in predefined [Layers](#Layer)
+A geographic interactive map and an instance of the Utopia Map with its own name, its own users and [Items](#Item) in predefined [Layers](#Layer)
 
 #### Layer
-A predefined category of [Items](#Item), with predefined [Map Markers](#Map-Marker), icons, colors, [Popups](#Popups) and [Profiles](#Profile)
+A predefined category of [Items](#Item), with predefined [Map Markers](#Map-Marker), icons, colors, texts, [Popups](#Popups) and [Profiles](#Profile)
 
 #### Item
 An item is an object whith a profile which is part of one [Layer](#Layer) and usually has a geographic position shown on the map wiht [Map Marker](#Map-Marker) and [Popup](#Popup)
@@ -13,7 +13,7 @@ An item is an object whith a profile which is part of one [Layer](#Layer) and us
 A marker on a Map which shows the geographic position of an [Item](#Item)
 
 #### Popup
-It opens when the user clicks a Map Marker.
+A small preview of an item which opens on the map when the user clicks it's [Map Marker](#Map-Marker).
 
 #### Profile
 A representation of all the the data of an [Item](#Item)