diff --git a/lib/arm/arm_machine.rb b/lib/arm/arm_machine.rb
index bb2bc143..15eea118 100644
--- a/lib/arm/arm_machine.rb
+++ b/lib/arm/arm_machine.rb
@@ -2,7 +2,7 @@ require_relative "attributed"
 
 module Arm
 
-  # A Machines main responsibility in the framework is to instantiate Instructions
+  # A Machines main responsibility in the named_listwork is to instantiate Instructions
 
   # Value functions are mapped to machines by concatenating the values class name + the methd name
   # Example:  IntegerValue.plus( value ) ->  Machine.signed_plus (value )
diff --git a/lib/register/boot.rb b/lib/register/boot.rb
index f76a46ca..acf6cab3 100644
--- a/lib/register/boot.rb
+++ b/lib/register/boot.rb
@@ -115,7 +115,7 @@ module Register
     def type_names
        {  :Word => {:char_length => :Integer} ,
           :List => {:indexed_length => :Integer} ,
-          :Message => { :next_message => :Message, :receiver => :Object, :frame => :NamedList ,
+          :Message => { :next_message => :Message, :receiver => :Object, :named_list => :NamedList ,
                         :return_address => :Integer, :return_value => :Integer,
                         :caller => :Message , :name => :Word , :indexed_length => :Integer },
           :MetaClass => {:object => :Object},
diff --git a/lib/register/register_value.rb b/lib/register/register_value.rb
index ac361841..01d19749 100644
--- a/lib/register/register_value.rb
+++ b/lib/register/register_value.rb
@@ -99,7 +99,7 @@ module Register
 
   # if a symbol is given, it may be one of the four objects that the vm knows.
   # These are mapped to register references.
-  # The valid symbols (:message, :self,:frame,:new_message) are the same that are returned
+  # The valid symbols (:message, :self,:named_list,:new_message) are the same that are returned
   # by the slots. All data (at any time) is in one of the instance variables of these four
   # objects. Register defines module methods with the same names (and _reg)
   def self.resolve_to_register reference
diff --git a/lib/typed/method_compiler/assignment.rb b/lib/typed/method_compiler/assignment.rb
index 8f8e22f5..df6cfac6 100644
--- a/lib/typed/method_compiler/assignment.rb
+++ b/lib/typed/method_compiler/assignment.rb
@@ -19,13 +19,13 @@ module Typed
          # TODO, check type @method.arguments[index].type
         return Register.set_slot(statement , value , :message , Parfait::Message.get_indexed(index) )
       end
-      # or a local so it is in the frame
+      # or a local so it is in the named_list
       index = @method.has_local( name )
       return nil unless index
       # TODO, check type  @method.locals[index].type
-      frame = use_reg(:NamedList)
-      add_code Register.get_slot(statement , :message , :frame , frame )
-      return Register.set_slot(statement , value , frame , Parfait::NamedList.get_indexed(index) )
+      named_list = use_reg(:NamedList)
+      add_code Register.get_slot(statement , :message , :named_list , named_list )
+      return Register.set_slot(statement , value , named_list , Parfait::NamedList.get_indexed(index) )
     end
   end
 end
diff --git a/lib/typed/method_compiler/name_expression.rb b/lib/typed/method_compiler/name_expression.rb
index 388a68a8..a67c8633 100644
--- a/lib/typed/method_compiler/name_expression.rb
+++ b/lib/typed/method_compiler/name_expression.rb
@@ -17,7 +17,7 @@ module Typed
           add_code Register.get_slot(statement , :message , Parfait::Message.get_indexed(index), ret )
           return ret
         end
-        # or a local so it is in the frame
+        # or a local so it is in the named_list
         handle_local(statement)
       end
 
@@ -26,10 +26,10 @@ module Typed
       def handle_local statement
         index = @method.has_local( statement.name )
         raise "must define variable '#{statement.name}' before using it" unless index
-        frame = use_reg :NamedList
-        add_code Register.get_slot(statement , :message , :frame , frame )
+        named_list = use_reg :NamedList
+        add_code Register.get_slot(statement , :message , :named_list , named_list )
         ret = use_reg @method.locals_type( index )
-        add_code Register.get_slot(statement , frame , Parfait::NamedList.get_indexed(index), ret )
+        add_code Register.get_slot(statement , named_list , Parfait::NamedList.get_indexed(index), ret )
         return ret
       end
 
diff --git a/lib/typed/parfait/message.rb b/lib/typed/parfait/message.rb
index 5659588d..8ec122b9 100644
--- a/lib/typed/parfait/message.rb
+++ b/lib/typed/parfait/message.rb
@@ -9,7 +9,7 @@
 
 module Parfait
   class Message < Object
-    attributes [:next_message , :receiver , :frame , :return_address ]
+    attributes [:next_message , :receiver , :named_list , :return_address ]
     attributes [:return_value, :caller , :name ]
 
     include Indexed
@@ -17,7 +17,7 @@ module Parfait
 
     def initialize next_m
       self.next_message = next_m
-      self.frame = NamedList.new()
+      self.named_list = NamedList.new()
       self.caller = nil
       super()
     end
diff --git a/lib/typed/parfait/named_list.rb b/lib/typed/parfait/named_list.rb
index d7c8b1a7..058efa03 100644
--- a/lib/typed/parfait/named_list.rb
+++ b/lib/typed/parfait/named_list.rb
@@ -8,10 +8,10 @@
 # A Message with is arguments, and a NamedList make up the two sides of message passing:
 # A Message (see details there) is created by the caller and control is transferred
 # A NamedList is created by the receiver
-# PS: it turns out that both messages and frames are created at compile, not run-time, and
-#  just constantly reused. Each message has a frame object ready and is also linked
+# PS: it turns out that both messages and named_lists are created at compile, not run-time, and
+#  just constantly reused. Each message has a named_list object ready and is also linked
 #  to the next message.
-# The better way to say above is that a message is *used* by the caller, and a frame by the callee.
+# The better way to say above is that a message is *used* by the caller, and a named_list by the callee.
 
 # Also at runtime Messages and NamedLists remain completely "normal" objects.
 # Ie they have have type and instances and so on.*
diff --git a/stash/message.rb b/stash/message.rb
index db140086..d7923898 100644
--- a/stash/message.rb
+++ b/stash/message.rb
@@ -2,7 +2,7 @@ module Register
   # So when an object calls a method, or sends a message, this is what it sends: a Message
 
   # A message contains the sender, return and exceptional return addresses,the arguments,
-  #  and a slot for the frame.
+  #  and a slot for the named_list.
 
   # As such it is a very run-time object, deep in the machinery as it were, and does not have
   # meaningful methods you could call at compile time.
@@ -19,7 +19,7 @@ module Register
   # but as there is a guaranteed result (be it method_missing) it does not matter to the passing
   #  mechanism described
 
-  # During compilation Message and frame objects are created to do type analysis
+  # During compilation Message and named_list objects are created to do type analysis
 
   class Message
 
@@ -28,10 +28,10 @@ module Register
       @next_normal = normal
       @next_exception = exceptional
       @arguments = arguments
-      # a frame represents the local and temporary variables at a point in the program.
-      @frame = nil
+      # a named_list represents the local and temporary variables at a point in the program.
+      @named_list = nil
     end
-    attr_reader :me, :next_normal, :next_exception, :arguments , :frame
+    attr_reader :me, :next_normal, :next_exception, :arguments , :named_list
 
     #
   end
diff --git a/stash/slot.rb b/stash/slot.rb
index 9fc215c4..bf8d016f 100644
--- a/stash/slot.rb
+++ b/stash/slot.rb
@@ -7,11 +7,11 @@ module Register
 
   # Four known objects exist and those correspond to subclasses:
   # - the message that has been received: MessageSlot
-  # - the frame of the method that is executing (local variables): NamedListSlot
+  # - the named_list of the method that is executing (local variables): NamedListSlot
   # - self as an object: SelfsSlot
   # - a message that will be sent, NewMessageSlot
 
-  # additionally frame, self and return are slots in Message and NewMessage
+  # additionally named_list, self and return are slots in Message and NewMessage
 
   # Slot has a lot of small subclasses
   # Names for the slots avoid indexes
diff --git a/test/typed/parfait/test_named_list.rb b/test/typed/parfait/test_named_list.rb
index 9f602bba..d1c53a07 100644
--- a/test/typed/parfait/test_named_list.rb
+++ b/test/typed/parfait/test_named_list.rb
@@ -3,17 +3,17 @@ require_relative "../helper"
 class TestNamedLists < MiniTest::Test
 
   def setup
-    @frame = Register.machine.boot.space.first_message.frame
-    @type = @frame.get_type
+    @named_list = Register.machine.boot.space.first_message.named_list
+    @type = @named_list.get_type
   end
 
-  def test_frame_get_type
+  def test_named_list_get_type
     assert_equal Parfait::Type , @type.class
   end
 
-  def test_frame_next_set
-    @frame.next_list = :next_list
-    assert_equal :next_list , @frame.next_list
+  def test_named_list_next_set
+    @named_list.next_list = :next_list
+    assert_equal :next_list , @named_list.next_list
   end
 
 end
diff --git a/test/typed/parfait/test_space.rb b/test/typed/parfait/test_space.rb
index f8e087fd..c43ef3f9 100644
--- a/test/typed/parfait/test_space.rb
+++ b/test/typed/parfait/test_space.rb
@@ -60,7 +60,7 @@ class TestSpace < MiniTest::Test
     all = []
     while mess
       all << mess
-      assert mess.frame
+      assert mess.named_list
       mess = mess.next_message
     end
     assert_equal all.length , all.uniq.length
diff --git a/test/typed/statements/test_assign.rb b/test/typed/statements/test_assign.rb
index 02235c29..9fef1f98 100644
--- a/test/typed/statements/test_assign.rb
+++ b/test/typed/statements/test_assign.rb
@@ -40,7 +40,7 @@ class TestAssignStatement < MiniTest::Test
     check
   end
 
-  def test_frame_get
+  def test_named_list_get
     Register.machine.space.get_main.add_local(:r , :Integer)
     @input = s(:statements, s(:assignment, s(:name, :r), s(:int, 5)), s(:return, s(:name, :r)))
     @expect =  [Label, LoadConstant, GetSlot, SetSlot, GetSlot, GetSlot, SetSlot ,
@@ -48,7 +48,7 @@ class TestAssignStatement < MiniTest::Test
     was = check
     get = was.next(5)
     assert_equal GetSlot , get.class
-    assert_equal 4, get.index , "Get to frame index must be offset, not #{get.index}"
+    assert_equal 4, get.index , "Get to named_list index must be offset, not #{get.index}"
   end
 
   def test_assign_int
@@ -58,7 +58,7 @@ class TestAssignStatement < MiniTest::Test
     was = check
     set = was.next(3)
     assert_equal SetSlot , set.class
-    assert_equal 4, set.index , "Set to frame index must be offset, not #{set.index}"
+    assert_equal 4, set.index , "Set to named_list index must be offset, not #{set.index}"
   end
 
   def test_assign_arg
@@ -79,7 +79,7 @@ class TestAssignStatement < MiniTest::Test
     was = check
     get = was.next(1)
     assert_equal GetSlot , get.class
-    assert_equal 10, get.index , "Get to frame index must be offset, not #{get.index}"
+    assert_equal 10, get.index , "Get to named_list index must be offset, not #{get.index}"
   end
 end
 end
diff --git a/test/typed/statements/test_fields.rb b/test/typed/statements/test_fields.rb
index ed32840e..8ea5caee 100644
--- a/test/typed/statements/test_fields.rb
+++ b/test/typed/statements/test_fields.rb
@@ -5,7 +5,7 @@ module Register
   class TestFieldStatement < MiniTest::Test
     include Statements
 
-    def test_field_frame
+    def test_field_named_list
       Register.machine.space.get_main.add_local( :m , :Message)
       @input = s(:statements,  s(:return, s(:field_access,
                                 s(:receiver, s(:name, :m)), s(:field, s(:name, :name)))))