# Keywords

The following keywords are built into Blitz, and may not be used as identifiers (variables, function names, labels, etc.):

{% code overflow="wrap" %}

```basic
After, And, Before, Case, Const, Data, Default, Delete, Dim, Each, Else, ElseIf, End, EndIf, Exit, False, Field, First, Float, For, Forever, Function, Global, Gosub, Goto, If, Insert, Int, Last, Local, Mod, New, Next, Not, Null, Or, Pi, Read, Repeat, Restore, Return, Sar, Select, Shl, Shr, Step, Str, Then, To, True, Type, Until, Wend, While, Xor, Include
```

{% endcode %}