Definition of Lexicon

In linguistics and language studies, a lexicon refers to the vocabulary or the collection
of words and expressions in a language or a specific domain. It encompasses the complete set of
words, phrases, idioms, technical terms, and other lexical units that exist in a particular
language or within a particular field of study.

The lexicon of a language provides the building blocks for creating meaningful sentences and
utterances. It consists of various types of words, such as nouns, verbs, adjectives, adverbs,
pronouns, prepositions, conjunctions, and interjections. Additionally, the lexicon also includes
the grammatical information associated with each word, such as inflectional forms, part-of-speech
markers, and syntactic constraints.

Lexicons are not static entities, as they constantly evolve and expand to accommodate new words
and changes in language usage. Lexicographers and linguists often study and document lexicons to
analyze the structure and meaning of words, investigate semantic relationships, and create
dictionaries and other linguistic resources.

Overall, the lexicon of a language or a specialized field acts as a repository of words and their
associated information, serving as a fundamental resource for understanding and effectively
communicating in a given language or domain.