diff --git a/frontend/apps/reader/modules/readerdictionary.lua b/frontend/apps/reader/modules/readerdictionary.lua
index 2bea3c360..afb675b85 100644
--- a/frontend/apps/reader/modules/readerdictionary.lua
+++ b/frontend/apps/reader/modules/readerdictionary.lua
@@ -251,6 +251,15 @@ If you'd like to change the order in which dictionaries are queried (and their r
                     })
                 end,
             },
+            { -- setting used by dictquicklookup
+                text = _("Large window"),
+                checked_func = function()
+                    return G_reader_settings:isTrue("dict_largewindow")
+                end,
+                callback = function()
+                    G_reader_settings:flipNilOrFalse("dict_largewindow")
+                end,
+            },
             { -- setting used by dictquicklookup
                 text = _("Justify text"),
                 checked_func = function()
diff --git a/frontend/ui/widget/dictquicklookup.lua b/frontend/ui/widget/dictquicklookup.lua
index 22b0e6e76..74ba28cb5 100644
--- a/frontend/ui/widget/dictquicklookup.lua
+++ b/frontend/ui/widget/dictquicklookup.lua
@@ -165,7 +165,7 @@ function DictQuickLookup:update()
         w = Screen:getWidth(),
         h = Screen:getHeight(),
     }
-    if self.is_fullpage then
+    if self.is_fullpage or G_reader_settings:isTrue("dict_largewindow") then
         -- bigger window if fullpage being shown - this will let
         -- some room anyway for footer display (time, battery...)
         self.height = Screen:getHeight()