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Semantics

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Semantics is the systematic study of linguistic meaning. It investigates how meaning arises within a language and how it functions. This field examines how expressions are built from various layers of constituents. These layers include morphemes, words, clauses, sentences, and even full texts. Researchers look at how the meanings of these smaller parts affect one another. By doing so, they seek to understand the very nature of communication.

Word, object, and thought
Word, object, and thought

Semantics is a descriptive discipline. This means it aims to determine how meaning actually works. It does not try to prescribe how people should use words. Instead, it asks how words combine to create the meaning of sentences. It also explores the connection between words, the mind, and the physical world.

To understand semantics, one must distinguish it from other linguistic fields. Syntax is the study of rules for arranging words into correct sentences. Phonology examines the different sounds used in a language and how they form words. Semantics is also different from pragmatics. Pragmatics investigates how people use language in specific communication contexts. For example, the phrase "That's what I'm talking about" changes meaning based on the situation. While pragmatics looks at actual performance and context, semantics focuses on context-independent meaning. This is the general, public meaning often found in dictionary definitions.

Semiotic triangle
Semiotic triangle

Semantics is a subfield of semiotics. Semiotics is the broader study of both linguistic and non-linguistic signs. This includes things like nodding to show agreement or stripes on a uniform. Semantics focuses specifically on the meaning within human language.

Meaning can be analyzed through several distinct branches. Lexical semantics is the study of individual word meanings. It examines if words have one or many meanings and how they relate to each other. Phrasal semantics studies the meaning of full sentences. It often explores compositionality, which is how new meanings emerge from word arrangements. Formal semantics uses logic and mathematics to create precise frameworks for meaning. Cognitive semantics takes a psychological approach. It assumes language is closely related to the mental structures we use to understand the world. Other specialized branches include computational, conceptual, and cultural semantics.

Wismar Marienkirche Bronzebüste Gottlob Frege (01-1)
Wismar Marienkirche Bronzebüste Gottlob Frege (01-1)

A central concept in this field is the distinction between sense and reference. This idea was first introduced by the philosopher Gottlob Frege. The reference, or referent, is the actual object in the world that an expression points to. The sense is the way that object is interpreted or the idea associated with it. For example, the "morning star" and the "evening star" both point to the same planet. They share a reference, but they possess different senses. This distinction explains why the sentence "the morning star is the evening star" is informative. It allows us to learn that two different descriptions actually describe the same thing.

Another vital mechanism is the principle of compositionality. This principle suggests that the meaning of a complex expression is a function of its parts. For instance, you can understand "Zuzana owns a dog" by knowing the meanings of the individual words. This process allows humans to understand an almost infinite number of meanings. Even if you encounter a sentence you have never seen before, you can often grasp it. This happens because you understand the constituent parts and how they are combined.

ParseTree
ParseTree

While some scholars debate the strength of this principle, it remains a key way to explain linguistic competence.

Various theories attempt to explain how expressions are endowed with meaning. Referential theories suggest meaning is simply the part of reality an expression points to. Ideational theories identify meaning with mental states, such as the ideas an expression evokes. Causal theories argue that meaning is determined by causes and effects. Behaviorist semantics analyzes this through the lens of stimulus and response. Other frameworks include truth-conditional semantics and verificationist theories. These different perspectives help researchers approach the complex relationship between language and thought from multiple angles.

Michel Bréal
Michel Bréal

The history of semantics shows it has been studied since antiquity. However, it was not recognized as an independent field until the 19th century. The word itself comes from the Ancient Greek adjective *semantikos*, meaning "relating to signs." Originally, the term was used to describe medical symptoms. It later expanded to include all types of signs, including linguistic ones. The linguist Michel Bréal introduced the term into the English language from French. Today, semantics is essential to many fields. It connects deeply to formal logic, computer science, and psychology. It also relates to etymology, which tracks how word meanings change over time.

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File:Word, object, and thought.svg
Word, object, and thought.svg
File:Latin dictionary.jpg
Latin dictionary.jpg
File:Wismar Marienkirche Bronzebüste Gottlob Frege (01-1).JPG
Wismar Marienkirche Bronzebüste Gottlob...
File:Semiotic triangle.svg
Semiotic triangle.svg
File:ParseTree.svg
ParseTree.svg
File:Hypotenuse.svg
Hypotenuse.svg
File:Referential theory of meaning.svg
Referential theory of meaning.svg
File:Ideational theory of meaning.svg
Ideational theory of meaning.svg
File:Hindi Manuscript 884 Wellcome L0024558.jpg
Hindi Manuscript 884 Wellcome L0024558.jpg
File:Abelard cour Napoleon Louvre (cropped).png
Abelard cour Napoleon Louvre (cropped).png
File:Michel Bréal.jpg
Michel Bréal.jpg
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