diff --git a/en-US/N.xml b/en-US/N.xml
index 4ec6a2e..5bab038 100644
--- a/en-US/N.xml
+++ b/en-US/N.xml
@@ -107,6 +107,16 @@
 			</listitem>
 
 		</varlistentry>
+		 <varlistentry id="number-sign">
+			<term>number sign</term>
+			 <listitem>
+				<para>
+					Generally, use "number sign" to refer to the # character. Alternatively, use "hash" to refer to a hashtag in social media, or to refer to Secure Hash Algorithm (see <xref linkend="sha" />), or when writing exclusively for a European audience. You can instead use "pound sign" when writing exclusively for a North American audience, if "number sign" is not appropriate for the context.  
+				</para>
+
+			</listitem>
+
+		</varlistentry>
 
 <!-- Moved "Numbers" entry to Chapter 4. -->
 		 <!-- <varlistentry id="numbers">