code: public boolean isUncountable( String word ) {
          if (word == null) return false;
          String trimmedLower = word.trim().toLowerCase();
          return this.uncountables.contains(trimmedLower);
      }
docs: Determine whether the supplied word is considered uncountable by the {@link #pluralize(Object) pluralize} and
  {@link #singularize(Object) singularize} methods.
  
  @param word the word
  @return true if the plural and singular forms of the word are the same