No. Plot is a noun, with several meanings, and also a verb.
If the noun plot is used together with another noun, to create a specific term, it is called a "noun adjunct," not an adjective, as in the term "plot device."
No, a plot is a noun. To plot is a verb.
plot, scheme, intrigue, manoeuvre, contrive, machinate, plan
Yes, the noun astonishment is an abstract noun, a word for an emotional reaction.
Is undergone an abstract noun
Concrete noun
The abstract noun is criticism.
The noun 'hopefulness' is an abstract noun, a word for an emotion.
The abstract noun is obligation.
Abstract noun of hopeless
Friendship has not abstract noun because It is a abstract noun
The abstract noun form is tourism.
The abstract noun for the adjective vacant is vacantness. Another abstract noun form is vacancy.