+<div class="paragraph"><p><a id="p_unstream"></a></p></div>\r
+</div>\r
+<div class="sect2">\r
+<h3 id="_word_unstream">Word: UNSTREAM</h3>\r
+<div class="literalblock">\r
+<div class="content">\r
+<pre><code>Data stack: ( stream* -- )</code></pre>\r
+</div></div>\r
+<div class="paragraph"><p>"UNSTREAM" is a function word that releases the memory allocated for a\r
+stream, and closes the associated file if it’s a file stream.</p></div>\r
+<div class="sect3">\r
+<h4 id="_file_descriptor_backed_stream_2">File descriptor backed stream</h4>\r
+<div class="paragraph"><p>This kind of stream has the stream header as a prefix within the\r
+allocated memory. Thus, stream* is the base address for the memory to\r
+reclaim, and the size of this is determined from the cell at (stream*\r
++ 16) plus the 32 bytes head itself.</p></div>\r
+</div>\r
+<div class="sect3">\r
+<h4 id="_memory_block_backed_stream_2">Memory block backed STREAM</h4>\r
+<div class="paragraph"><p>This kind of stream has a separate header which points at the memory\r
+area to reclaim. The cell at stream* is the base address, and the cell\r
+at (stream* + 16) is its size.</p></div>\r
+<div style="text-align:center">\r
+_______________________________________________________\r
+</div>\r
+<div class="paragraph"><p><a id="p_use"></a></p></div>\r
+</div>\r
+</div>\r
+<div class="sect2">\r
+<h3 id="_word_use">Word: USE</h3>\r
+<div class="literalblock">\r
+<div class="content">\r
+<pre><code>Data value: ( wordlist -- ) Input stream: word</code></pre>\r
+</div></div>\r
+<div class="paragraph"><p>"USE" is a function word that looks up next word given the wordlist.\r
+It reads next word on <a href="#p_input">INPUT</a> via <a href="#p_read_word">READ-WORD</a>,\r
+then temporarily changes <a href="#p_current_wordlist">CURRENT-WORDLIST</a> to\r
+<a href="#p_find">FIND</a> the word via the given wordlist, and returns the TFA\r
+of that word, or just 0 if the word coudn’t be found.</p></div>\r
+<div style="text-align:center">\r
+_______________________________________________________\r
+</div>\r