diff --git a/doc/Namespaces.md b/doc/Namespaces.md
index e7fd7fa..324bc4b 100644
--- a/doc/Namespaces.md
+++ b/doc/Namespaces.md
@@ -3,48 +3,21 @@
 Retro organizes words into *namespaces*. These are short prefix
 strings at the start of a word name.
 
-The primary namespaces are:
+| Prefix  | Contains                                               |
+| ------- | ------------------------------------------------------ |
+| ASCII:  | ASCII character constants for control characters       |
+| buffer: | Words for operating on a simple linear LIFO buffer     |
+| c:      | Words for operating on ASCII character data            |
+| class:  | Contains class handlers for words                      |
+| d:      | Words operating on the Dictionary                      |
+| err:    | Words for handling errors                              |
+| n:      | Words operating on numeric data                        |
+| prefix: | Contains prefix handlers                               |
+| s:      | Words operating on string data                         |
+| set:    | Words operating on sets (simple arrays)                |
+| v:      | Words operating on variables                           |
+| file:   | File I/O words                                         |
+| f:      | Floating Point words                                   |
+| gopher: | Gopher protocol words                                  |
+| unix:   | Unix system call words                                 |
 
-`ASCII:`
-
-Holds ASCII character constants for control characters
-
-`buffer:`
-
-Contains words for operating on a simple linear LIFO buffer.
-
-`c:`
-
-Contains words for operating on ASCII character data.
-
-`class:`
-
-Contains class handlers for words.
-
-`d:`
-
-Contains words operating on the Dictionary.
-
-`err:`
-
-Contains words for handling errors.
-
-`n:`
-
-Contains words operating on numeric data.
-
-`prefix:`
-
-Contains prefix handlers.
-
-`s:`
-
-Contains words operating on string data.
-
-`set:`
-
-Contains words operating on sets (simple arrays)
-
-`v:`
-
-Contains words operating on variables.