diff --git a/API.md b/API.md
index f816ad9..4cf5445 100644
--- a/API.md
+++ b/API.md
@@ -256,7 +256,7 @@ to all blocks which are member of the group `puts_out_fire`.
         end
     end)
 
-### `doc.sub.items.add_real_group_names(groupnames)`
+### `doc.sub.items.add_friendly_group_names(groupnames)`
 Use this function so set some more readable group names to show them
 in the formspec, since the internal group names are somewhat cryptic
 to players.
@@ -266,7 +266,7 @@ the values are the group names which will be actually shown in the
 Documentation System.
 
 ***Note***: This function is mostly there to work around a problem in
-Minetest as it does not support “real” group names, which means exposing
+Minetest as it does not support “friendly” group names, which means exposing
 groups to an interface is not pretty. Therefore, this function may be
 deprecated when Minetest supports such a thing.
 
diff --git a/init.lua b/init.lua
index 9d170ef..12bbb70 100644
--- a/init.lua
+++ b/init.lua
@@ -888,8 +888,9 @@ function doc.sub.items.add_item_image_overrides(image_overrides)
 end
 
 -- Register group definition stuff
--- “Real” group names to replace the rather technical names
-function doc.sub.items.add_real_group_names(groupnames)
+-- More (user-)friendly group names to replace the rather technical names
+-- for better understanding
+function doc.sub.items.add_friendly_group_names(groupnames)
 	for internal, real in pairs(groupnames) do
 		groupdefs[internal] = real
 	end