dictionary是可数名词。
dictionary:n.词典;字典;辞书;专业术语大全;专业词典;电子词典
The example sentences in this dictionary are printed in italic type.
本词典中的例句都是用斜体排印的。
I looked it up in the dictionary.
我在词典里查过这个词。
The dictionary is now in its sixth edition.
本词典现在是第六版。