If by the difference in articles you are distinguishing the physical book (a dictionary) from the process of publishing one (the dictionary), then sure. But, today those two things are becoming much more tightly interwoven, what with digital dictionaries et al. Even Ms. Stamper points that direction in her book. And I am completely unsure about your usage here — few people would understand the distinction between “a dictionary” and “the dictionary.”

Storyteller, seeker, always curious, work-in-progress

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