No it isn't.
Not exactly. It means a pair of things, two things which go together. Grammatically speaking, "duo" is a noun and "two" is an adjective.
Examples of abstract/concrete noun combinations are:birthday cake; the noun 'birthday' is an abstract noun as a word for a concept; the noun 'cake' is a concrete noun as a word for a type of food.card game; the noun 'card' is a concrete noun as a word for a small piece of cardboard marked with characters; the noun 'game' is an abstract noun as a word for a concept.computer science; the concrete noun 'computer' as a word for an electronic unit; the noun 'science' as a word for a concept.marriage license; the noun 'marriage' is an abstract noun as a word for a concept; the noun license is a concrete noun as a word for a document.
The word carrot is a common noun, a singular, concrete noun. Carrot is also an exact noun for the general noun vegetable.
The noun 'up' is a singular, common, noun. The noun 'up' is a concrete noun as a word for a physical direction. The noun 'up' is an abstract noun as a word for a positive situation or period of time.
Feet is a plural noun. Foot is a singular noun.
That is the correct spelling of the plural noun "soldiers."
Yes, determination is an abstract noun, a singular common noun; a word for firmness of purpose; resoluteness; the process of establishing something exactly.
No, it is an adverb. It refers to exactly two repetitions of an action.
Definitely not, You can't exactly touch honesty.
Yes, a proper noun would be specific, so if it was proper it would be something like Hank's bedroom. yes, exactly, it is common noun
noun
I don't exactly know what you mean by that, but any name for a girl could be a proper noun i.e. Jane, Michelle, Alexandra.
No, herd is a noun, a common, collective noun for a group of animals such as a herd of horses. The word heard sounds exactly the same as herd but 'heard' is a verb, the past tense of the verb 'to hear'.
I don't exactly know what you mean by that, but any name for a girl could be a proper noun i.e. Jane, Michelle, Alexandra.
Definitely not, You can't exactly touch honesty.
Yes because it specifies a specific place. When one says 'England', everyone knows exactly which England he's talking about [because there is only one!].
An abstract noun is used as an indirect object exactly the same as a concrete noun or a pronoun is used as an indirect object. Examples:We can have the melon for breakfast.He will be here in an hour.The teacher like my report on civil rights.