diff --git a/ext/tk/lib/tk/canvas.rb b/ext/tk/lib/tk/canvas.rb
index af404213e7..f3e9a7c229 100644
--- a/ext/tk/lib/tk/canvas.rb
+++ b/ext/tk/lib/tk/canvas.rb
@@ -77,7 +77,7 @@ class Tk::Canvas<TkWindow
     if tag.kind_of?(TkcItem) || tag.kind_of?(TkcTag)
       tag.id
     else
-      tag  # maybe an Array of configure paramters
+      tag  # maybe an Array of configure parameters
     end
   end
   private :tagid
diff --git a/ext/tk/lib/tk/text.rb b/ext/tk/lib/tk/text.rb
index bc2aa0a293..c18b3843b4 100644
--- a/ext/tk/lib/tk/text.rb
+++ b/ext/tk/lib/tk/text.rb
@@ -352,7 +352,7 @@ class Tk::Text<TkTextWin
       || tag.kind_of?(TkTextWindow)
       tag.id
     else
-      tag  # maybe an Array of configure paramters
+      tag  # maybe an Array of configure parameters
     end
   end
   private :tagid
diff --git a/ext/tk/lib/tkextlib/blt/component.rb b/ext/tk/lib/tkextlib/blt/component.rb
index a228a82246..c7ea213cee 100644
--- a/ext/tk/lib/tkextlib/blt/component.rb
+++ b/ext/tk/lib/tkextlib/blt/component.rb
@@ -1420,7 +1420,7 @@ module Tk::BLT
           tag.kind_of?(Marker)
         tag.id
       else
-        tag  # maybe an Array of configure paramters
+        tag  # maybe an Array of configure parameters
       end
     end
 
diff --git a/ext/tk/lib/tkextlib/blt/tree.rb b/ext/tk/lib/tkextlib/blt/tree.rb
index da53a6ed04..1a3563e60d 100644
--- a/ext/tk/lib/tkextlib/blt/tree.rb
+++ b/ext/tk/lib/tkextlib/blt/tree.rb
@@ -670,7 +670,7 @@ module Tk::BLT
           tag.kind_of?(Tk::BLT::Tree::Trace)
         tag.id
       else
-        tag  # maybe an Array of configure paramters
+        tag  # maybe an Array of configure parameters
       end
     end
 
diff --git a/ext/tk/lib/tkextlib/blt/treeview.rb b/ext/tk/lib/tkextlib/blt/treeview.rb
index 046cf7f837..38d90412e0 100644
--- a/ext/tk/lib/tkextlib/blt/treeview.rb
+++ b/ext/tk/lib/tkextlib/blt/treeview.rb
@@ -339,7 +339,7 @@ class Tk::BLT::Treeview
       || tag.kind_of?(Tk::BLT::Treeview::Tag)
       tag.id
     else
-      tag  # maybe an Array of configure paramters
+      tag  # maybe an Array of configure parameters
     end
   end
   private :tagid
diff --git a/ext/tk/lib/tkextlib/iwidgets/scrolledcanvas.rb b/ext/tk/lib/tkextlib/iwidgets/scrolledcanvas.rb
index 935e04bbcc..4dea2f2d5c 100644
--- a/ext/tk/lib/tkextlib/iwidgets/scrolledcanvas.rb
+++ b/ext/tk/lib/tkextlib/iwidgets/scrolledcanvas.rb
@@ -64,7 +64,7 @@ class Tk::Iwidgets::Scrolledcanvas
     elsif tag.kind_of?(Tk::Itk::Component)
       tag.name
     else
-      tag  # maybe an Array of configure paramters
+      tag  # maybe an Array of configure parameters
     end
   end
   private :tagid
diff --git a/lib/xmlrpc/server.rb b/lib/xmlrpc/server.rb
index c16375b405..64856ea1fa 100644
--- a/lib/xmlrpc/server.rb
+++ b/lib/xmlrpc/server.rb
@@ -50,7 +50,7 @@ class BasicServer
   # method should be called from a subclass indirectly by a +super+ call
   # in the initialize method.
   #
-  # The paramter +class_delim+ is used by add_handler, see
+  # The parameter +class_delim+ is used by add_handler, see
   # XMLRPC::BasicServer#add_handler, when an object is added as a handler, to
   # delimit the object-prefix and the method-name.
   def initialize(class_delim=".")