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In grammar, a noun is a word that represents a concrete or abstract thing, such as living creatures, places, actions, qualities, states of existence, and ideas. A noun may serve as an object or subject within a phrase, clause, or sentence.
For example, it is difficult to agree to whether concepts like God, the number three, and goodness are real, abstract, or both. An approach to resolving such difficulty is to use predicates as a general term for whether things are variously real, abstract, concrete, or of a particular property (e.g., good ).
Abstract objects are most commonly used in philosophy, particularly metaphysics, and semantics. They are sometimes called abstracta in contrast to concreta. The term abstract object is said to have been coined by Willard Van Orman Quine. [5] Abstract object theory is a discipline that studies the nature and role of abstract objects. It holds ...
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.
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'
For example, the noun aerobics has given rise to the adjective aerobicized. [3] Words combine to form phrases. A phrase typically serves the same function as a word from some particular word class. [3] For example, my very good friend Peter is a phrase that can be used in a sentence as if it were a noun, and is therefore called a noun phrase.
Although these examples offer alternate strategies for achieving the same abstraction, they do not fundamentally alter the need to support abstract nouns in code – all programming relies on an ability to abstract verbs as functions, nouns as data structures, and either as processes.
Abstract may refer to: "Abstract", a 2017 episode of the animated television series Adventure Time; Abstract, 1962 album by Joe Harriott; Abstract algebra, sets with specific operations acting on their elements; Abstract of title, a summary of the documents affecting the title to a parcel of land; Abstract (law), a summary of a legal document