Most likely to be an ABSTRACT NOUN in some conditions but it can be a concrete noun but Abstract noun is used more in abstract sentences.
The noun train is an abstract noun when used in an abstract context: I've lost my train of thought. The gerund (verbal noun) training is also an abstract noun.
When used as a noun, "time" is an abstract noun. It is most of the time a common noun.
Go is not a noun at all: it is a form of the verb, to go. (The proper noun "Go" is a game native to Asia.)
The word 'sincere' is not a noun, sincere is an adjective, a word to describe a noun. The noun form for sincere is sincereness, an abstract noun. Another abstract noun form is sincerity.
The adjective fantastic has the related abstract noun fanstasticality, but it is far less frequently used than the abstract noun fantasy.
The noun 'wise' is an abstract noun meaning the manner of something, the way or the mode of something.Example: "That's the way it crumbles, cookie wise."The abstract noun for the adjective 'wise' is wiseness.A related abstract noun form is wisdom.The noun brother is an abstract noun (when not used for the physical person), another abstract noun is brotherhood.
There is no abstract noun form of the concrete noun 'street'. The concrete noun 'street' can be used in an abstract context, for example: He lives on a street of broken dreams.
Is cheer an abstract noun or a concrete noun??????
A noun is an abstract noun either based on its definition or based on the context in which it is used.
The noun 'exhaustion' is a concrete noun as a word for a physical condition or state.The noun 'exhaustion' is used as an abstract noun when referring to the depletion of abstract concepts such emotional reserves or one's patience.
The word many, when used as a noun, is an abstract noun, a word for a concept rather than a specific number. The noun many is a plural noun.