A mobile is a moving one (3,4)
I believe the answer is:
art form
This could be a double definition.
'a mobile' is the first definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'moving one' is the second definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'is a' acts as a link.
Can you help me to learn more?
(Other definitions for art form that I've seen before include "A musical work" , "Writing or painting, for example" , "acting, for example" , "The sonata, for example" , "A symphony, perhaps" .)