Index: src/OFCountedSet.h
==================================================================
--- src/OFCountedSet.h
+++ src/OFCountedSet.h
@@ -20,11 +20,12 @@
 typedef void (^of_counted_set_enumeration_block_t)(id object, size_t count,
     BOOL *stop);
 #endif
 
 /**
- * \brief An unordered set of objects, counting how often it contains an object.
+ * \brief An abstract class for a mutable unordered set of objects, counting how
+ *	  often it contains an object.
  */
 @interface OFCountedSet: OFMutableSet
 /**
  * \brief Returns how often the object is in the set.
  *

Index: src/OFMutableArray.h
==================================================================
--- src/OFMutableArray.h
+++ src/OFMutableArray.h
@@ -19,11 +19,12 @@
 #ifdef OF_HAVE_BLOCKS
 typedef id (^of_array_replace_block_t)(id obj, size_t idx, BOOL *stop);
 #endif
 
 /**
- * \brief A class for storing, adding and removing objects in an array.
+ * \brief An abstract class for storing, adding and removing objects in anr
+ *	  array.
  */
 @interface OFMutableArray: OFArray
 /**
  * \brief Adds an object to the OFArray.
  *

Index: src/OFMutableDictionary.h
==================================================================
--- src/OFMutableDictionary.h
+++ src/OFMutableDictionary.h
@@ -19,11 +19,11 @@
 #ifdef OF_HAVE_BLOCKS
 typedef id (^of_dictionary_replace_block_t)(id key, id object, BOOL *stop);
 #endif
 
 /**
- * \brief An abstract class for using mutable dictionaries.
+ * \brief An abstract class for storing and changing objects in a dictionary.
  */
 @interface OFMutableDictionary: OFDictionary
 /**
  * \brief Sets an object for a key.
  *

Index: src/OFMutableSet.h
==================================================================
--- src/OFMutableSet.h
+++ src/OFMutableSet.h
@@ -15,11 +15,11 @@
  */
 
 #import "OFSet.h"
 
 /**
- * \brief An mutable unordered set of unique objects.
+ * \brief An abstract class for a mutable unordered set of unique objects.
  */
 @interface OFMutableSet: OFSet
 /**
  * \brief Adds the specified object to the set.
  *

Index: src/OFSet.h
==================================================================
--- src/OFSet.h
+++ src/OFSet.h
@@ -26,11 +26,11 @@
 typedef void (^of_set_enumeration_block_t)(id object, BOOL *stop);
 typedef BOOL (^of_set_filter_block_t)(id object);
 #endif
 
 /**
- * \brief An unordered set of unique objects.
+ * \brief An abstract class for an unordered set of unique objects.
  */
 @interface OFSet: OFObject <OFCollection, OFCopying, OFMutableCopying,
     OFSerialization>
 /**
  * \brief Returns a new, autoreleased set.