复数形式就是：dictionaries。

n. 词典; 字典; 辞书; 专业术语大全; 专业词典; 电子词典;扩展资料例句：To my certain knowledge, the dictionaries have arrived.据我所知，这批词典已经运到。I find it helpful to keep several dictionaries by me so as to compare their wording.我发现，手边有几本词典大有好处，这样可以比较它们的.选词用字。Because unabridged dictionaries contain nearly all English words, they are large and heavy.由于足本词典几乎包含了所有的英语单词，所以它们又大又重。Not all print dictionaries are the same, as you will notice when you select one.并非所有的印刷字典都是相同的,当您选择一个时，就会注意到这一点。