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A proper noun (sometimes called a proper name, though the two terms normally have different meanings) is a noun that represents a unique entity (India, Pegasus, Jupiter, Confucius, Pequod) – as distinguished from common nouns (or appellative nouns), which describe a class of entities (country, animal, planet, person, ship). [11]
Those abstract things are then said to be multiply instantiated, in the sense of picture 1, picture 2, etc., shown below. It is not sufficient, however, to define abstract ideas as those that can be instantiated and to define abstraction as the movement in the opposite direction to instantiation. Doing so would make the concepts "cat" and ...
Abstract nouns: deceit, information, cunning, and nouns derived from adjectives, such as honesty, wisdom, intelligence, poverty, stupidity, curiosity, and words ending with "-ness", such as goodness, freshness, laziness, and nouns which are homonyms of adjectives with a similar meaning, such as good, bad (can also use goodness and badness), hot ...
For example within nouns there are two sub classes, concrete nouns and abstract nouns. The concrete nouns include people, plants, animals, materials and objects while the abstract nouns refer to concepts such as qualities, actions, and processes. According to the nature of the noun, they are categorized into different semantic classes.
Nouns are also created by converting verbs and adjectives, as with the words talk and reading (a boring talk, the assigned reading). Nouns are sometimes classified semantically (by their meanings) as proper and common nouns (Cyrus, China vs frog, milk) or as concrete and abstract nouns (book, laptop vs embarrassment, prejudice). [4]
English nouns primarily function as the heads of noun phrases, which prototypically function at the clause level as subjects, objects, and predicative complements. These phrases are the only English phrases whose structure includes determinatives and predeterminatives, which add abstract-specifying meaning such as definiteness and proximity.
Noun class 1 refers to mass nouns, collective nouns, and abstract nouns. examples: вода 'water', любовь 'love' Noun class 2 refers to items with which the eye can focus on and must be non-active examples: дом 'house', школа 'school' Noun class 3 refers to non-humans that are active. examples: рыба 'fish', чайка 'seagull'
Abstract data type for an abstract description of a set of data; Algorithm for an abstract description of a computational procedure; Bracket abstraction for making a term into a function of a variable; Data modeling for structuring data independent of the processes that use it; Encapsulation for abstractions that hide implementation details