To see abbreviations in your dream may represent the initials of someone in your life. The abbreviations could stand for an organization or a common acronym or it may spell out some hidden message or advice. The dreaming mind likes to make use of puns, as well as shorthand messages.
For example, “CD” could be a pun on a “seedy” situation.
“AA” could stand for Alcoholics Anonymous and thus point to the dangers or your excesses and negative behaviors.
“Inc” may represent an “inkling”, hunch or suspicious you have about a situation.