diff --git a/resources/dictionaries/en/level_types.txt b/resources/dictionaries/en/level_types.txt
deleted file mode 100644
index fa9ee895..00000000
--- a/resources/dictionaries/en/level_types.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-basement|bsm|bsmt|bsmnt|basement|bsment
-floor|fl
-ground|g
-ground floor|gd|gdfl|gd fl
-level|lev|levl|lvel|lvl|l
-lobby
-lower ground floor|lg|lgf|lgfl
-mezzanine|mezz
-platform|pf
-podium|pd
-rooftop|rt|rf
-upper ground floor|ug|ugf|ugfl
\ No newline at end of file
diff --git a/resources/dictionaries/en/level_types_sub_basement.txt b/resources/dictionaries/en/level_types_sub_basement.txt
new file mode 100644
index 00000000..530d7bda
--- /dev/null
+++ b/resources/dictionaries/en/level_types_sub_basement.txt
@@ -0,0 +1 @@
+sub basement|sub-basement|subbasement|sb|s.b|s b
\ No newline at end of file