Yes, the word 'learning' is an abstract noun; a word for the process of acquiring knowledge.
The abstract noun forms for the verb 'to learn' are learner, one who learns, and the gerund (verbal noun) learning.
Yes, the noun astonishment is an abstract noun, a word for an emotional reaction.
It is the gerund learning (to mean knowledge gained by study). Learning can also mean the process of learning (an action) which is neither abstract nor concrete.Example sentence: "Thomas Jefferson was a man for all seasons, a man of learning, culture and science."
Is undergone an abstract noun
Concrete noun
The abstract noun is criticism.
The abstract noun form of the adjective 'curious' is curiousness.A related abstract noun is curiosity.
The noun 'hopefulness' is an abstract noun, a word for an emotion.
Abstract noun of hopeless
The abstract noun is obligation.
Friendship has not abstract noun because It is a abstract noun