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Lexicon

language culture Maturity 11-13 Next article →

A lexicon is the full collection of words in a language. You can think of it as a huge inventory. It is sometimes called a wordstock. People also have lexicons for special subjects, like medical or nautical words.

A language usually has two main parts. The first part is the lexicon. The second part is the grammar. Grammar is the system of rules for words. It lets us join words into meaningful sentences.

Words in a lexicon can be grouped in different ways. Some items are called lexemes. These are the basic units of the wordstock. To keep things simple, experts use a method called reductionism. They try to describe words using the fewest details possible. Lexemes can be grouped into larger sets called lemmas. A lemma is a group of words made from one root. Dictionaries use these lemmas as headwords. This helps people learn how to use words correctly.

Lexicons are not frozen in time. They grow through a process called lexicalization. This happens when new words become common. One way to grow is through innovation. This includes creating slang or new brand names. Another way is borrowing words from other languages. You can also use compounding to join two words together. This is the most common way to make new words.

There are many specific ways to build words. You can use acronyms by taking the first letters of words. NASA and laser are famous examples. You can also use inflection to change a word's tense or number. Some people use derivation to change a word's category. For example, adding "-able" can turn a verb into an adjective. This makes words like "readable." Sometimes, children create new words by mistake. These are called neologisms. If many people use them, they stay in the lexicon.

Languages change over a long time through many forces. This study is called comparative historical linguistics. One force is phonological assimilation. This is when a borrowed word changes its sound to fit a new language. Another way is through metaphor. This uses a word to mean something new. People who speak two languages may have two different lexicons. However, people speaking different dialects might share one lexicon. For example, British and American speakers both understand the word "ATM."

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