If we are consulting a dictionary is possibly a warning to investigate further on some project or work that we plan to undertake. The dream is telling us that we need to expand our knowledge about them.
Dream dictionary: oxford dictionary dream meanings
Dreaming that you are referring to a dictionary, signifies you will depend too much upon the opinion and suggestions of others for the clear management of your own affairs, which could be done with proper dispatch if your own will was given play.
…To dream that you are using a dictionary signifies that you don’t trust yourself enough. Dreaming about book that lists the words of a language, also can shows that for you the opinions of others is very important. Also, it can mean that you need help to find the solutions in your troubles. Are you able to manage of your own affairs? Or do you need help from others?…
It warns us that we need to expand our knowledge.
…certain she owed her downfall to the sinister influence of a dream.”I was in a shop in Oxford Street at the time,” she said, ” and beyond being rather fond of flirtations and dress, as most girls are, I had never done any serious wrong. One night, however, I dreamed I was at a ball and my partner was a bear. He danced divinely and I fell in love with him. He very politely asked permission to see me home, and, on arriving outside the shop, suddenly kissed me; and, with the moisture of his nasty wet mouth still on my lips, I awoke. Well, try how I would I could not banish that dream from my mind. I saw the bear always, no matter whether I was at work or taking my recreation, my thoughts were always of him; and the result was I became thoroughly demoralised. I…