diff --git a/.gitignore b/.gitignore
index e985a99..422d884 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 .envrc
 *.nix
+*.lua
+!*tlconfig.lua
diff --git a/ForthDictionary.tl b/ForthDictionary.tl
index f6d0c09..2352ebb 100644
--- a/ForthDictionary.tl
+++ b/ForthDictionary.tl
@@ -1,7 +1,19 @@
 local state = require("ForthState")
+local ForthDictionary = {}
 
-
-global type ForthDictionary = record
+global type Dictionary = record
 	contents: {string: function(State)}
 end
 
+
+function Dictionary:define(word: string, instructions: function(State))
+	self.contents[word] = instructions
+end
+local dict_mt = {__index = Dictionary}
+function Dictionary:new(): Dictionary
+	return setmetatable({contents = {}} as Dictionary, dict_mt)
+end
+
+
+
+return ForthDictionary
diff --git a/ForthState.tl b/ForthState.tl
index 2534d33..5d06a1c 100644
--- a/ForthState.tl
+++ b/ForthState.tl
@@ -7,7 +7,8 @@ local ForthState = {}
 global type State = record
 	dataStacks: {Stack}
 	compilerStack: Stack
-
+	activeDataStack: Stack
+	interrupts: {function(State)}
 	-- dictionaries: {string:any}
 end
 
@@ -28,6 +29,10 @@ end
 function State:changeCompilerStack(compilerStack: Stack)
 	self.compilerStack = compilerStack
 end
+function State:changeActiveDataStack(stackIndex: number)
+	assert(stackIndex <= #self.dataStacks and stackIndex > 0)
+	self.activeDataStack = self.dataStacks[stackIndex]
+end
 
 local state = State:new()