
The Correct Answer and Explanation is:
The correct answer is aircraft.
The key to solving this analogy lies in understanding the relationship between the first pair of words: nightmare and dream. A nightmare is a specific type of dream, characterized by its frightening or distressing nature. The relationship is therefore one of a specific example to its broader, more general category. A nightmare falls under the general umbrella of dreams. To complete the analogy correctly, we must find a word that serves as a general category for the specific example of a blimp.
Let’s apply this “specific is to general” logic to the second pair of words. A blimp is a particular kind of flying machine. It is a type of airship, specifically a non rigid one, which uses a lighter than air gas to achieve flight. We need to identify the general class of vehicles to which a blimp belongs.
Evaluating the given options, “aircraft” is the most suitable choice. The term aircraft is a broad classification for any machine capable of flight, including airplanes, helicopters, gliders, and airships like blimps. Therefore, a blimp is a specific type of aircraft. This perfectly mirrors the relationship between a nightmare and a dream.
The other options are incorrect because they do not fit this pattern. A “boat” is a vehicle for water travel, so a blimp is not a type of boat. A “plane” is also a specific type of aircraft, just as a blimp is. Choosing “plane” would be analogous to saying “nightmare is to lucid dream,” which compares two specific types within the same category rather than a specific type to its general category. The analogy requires the overarching classification, which is aircraft. Thus, the completed analogy reads: nightmare is to dream as blimp is to aircraft.
