diff -r d99e45054fd8 -r 088e25408bf9 data/dictionary.xml
--- a/data/dictionary.xml	Tue Aug 13 23:51:23 2013 +0200
+++ b/data/dictionary.xml	Wed Aug 14 00:06:55 2013 +0200
@@ -83,7 +83,15 @@
 	</concept>
 	<concept>
 		<term abbreviation="MMS" completeForm="multimedia messaging service" language="en"/>
-		<explanation language="en"><text></text></explanation>
+		<explanation language="en">
+			<text>
+				a service or particular multimedia message sent from or to a mobile phone;
+				in contrast to SMS, supports not only text but also pictures, videos, sounds…
+				thus subscriber can take a photo by his mobile phone and easily send it to a friend;
+				other use case is AOMT messaging e.g. news with pictures or some premium content;
+				MMS requires special infrastructure including MMSC deployed by the operator
+			</text>
+		</explanation>
 		<tag>messaging</tag>
 	</concept>
 	<concept>
@@ -110,7 +118,12 @@
 	</concept>
 	<concept>
 		<term abbreviation="SMIL" completeForm="synchronized multimedia integration language" language="en"/>
-		<explanation language="en"><text></text></explanation>
+		<explanation language="en">
+			<text>
+				a markup language for describing multimedia presentations;
+				describes timing, layout, animations etc.
+			</text>
+		</explanation>
 		<tag>computer</tag>
 		<tag>xml</tag>
 	</concept>