    Sentence It On the other hand, the  shared main entry for watershed  has twenty-three words in CED but  95 in Cobuild . And the word  Waterless is a main entry in  Cobuild , explained in twenty  words, whereas in CED it is  naught but 2 so-called undefined  runon ’merely mentioned, but not  explained ¢xplicitly, as 2 sub-  entry at water . So CED enters  more items than Cobuild , but  devotes less space to explaining  them.