No, the noun 'travelers' is a concrete noun, a word for people.
An abstract noun is a word for something that can't be experienced by any of the five physical senses; something that can't be seen, heard, smelled, tasted, or touched. An abstract noun is a word for something that is known, learned, thought, understood, or felt emotionally.
The collective noun for travelers is a caravan of travelers.
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.
Friendship has not abstract noun because It is a abstract noun
Abstract noun of hopeless
The abstract noun form is tourism.
The abstract noun for the adjective quick is quickness.
The abstract noun for the adjective vacant is vacantness. Another abstract noun form is vacancy.