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Lexicon (Noun)

A language user's knowledge of words.

Nouns denoting cognitive processes and contents.

A child's lexicon expands rapidly during the early years of language acquisition as they learn new words and phrases.
Language learners often rely on their existing lexicon in their native language to help them guess the meanings of unfamiliar words in the target language.
A speaker's lexicon is not just a list of words, but also includes the grammatical and semantic properties that accompany each word.
The relationship between a language user's lexicon and their ability to express complex ideas is a topic of ongoing research in linguistics.
Dialects and regional variations can significantly affect an individual's lexicon, resulting in differences in word choice and usage.

A reference book containing an alphabetical list of words with information about them.

Nouns denoting communicative processes and contents.

The library's shelves were lined with various lexicons from different languages and cultures, each one filled with hundreds of pages of words and definitions.
Her favorite lexicon was the dictionary her grandmother had given her, which had been a trusty companion throughout her education.
As a linguist, the old lexicon he had found in the attic was an invaluable source of historical language data.
She spent hours browsing through the online lexicon, fascinated by the etymology and usage examples provided for each word.
In the digital age, online lexicons have become the norm, with many traditional publishers releasing their reference books online.