Definition

1. Noun:
   • A reference book containing a classified list of synonyms and sometimes antonyms: A thesaurus is a specialized dictionary that groups words with similar meanings (synonyms) together, often organized by concept or theme, to help users find the right word for a specific context.

Examples of Usage

• Noun:
  • She consulted a thesaurus to find a more precise word than "happy."
  • Writers often use a thesaurus to avoid repetition and enrich their vocabulary.
  • The thesaurus listed "abode," "residence," and "dwelling" as synonyms for "home."

Advanced Usage

• "Roget's Thesaurus": Refers to a famous and widely used thesaurus first compiled by Peter Mark Roget in 1852, which organizes words by ideas and concepts.

  • The structure of Roget's Thesaurus is based on a hierarchical classification of ideas.

• "Electronic/Thesaurus": Refers to a digital version of a thesaurus, often included in word-processing software or available online.

  • The thesaurus feature in the software suggested several alternatives for the overused adjective.

Variants and Related Words

• Thesauri (n): The less common plural form of "thesaurus," often used in academic or formal contexts.

  • The library's reference section contains several historical thesauri.

• Thesauruses (n): The more common plural form of "thesaurus."

  • Modern thesauruses are often integrated into dictionary apps.

Synonyms

• Synonym dictionary: A more descriptive term for a thesaurus.
• Wordfinder: An informal term for a reference book that helps find words.

Related Phrases

• "To use a thesaurus": The standard phrase for consulting this reference work.
  • It's a good practice to use a thesaurus when editing your essay.

Notes on Meaning

• A thesaurus differs from a standard dictionary. While a dictionary provides definitions, pronunciations, and etymologies, a thesaurus primarily provides lists of words with similar meanings.
• It is a tool for expanding vocabulary and improving precision in language use, but it requires careful selection to ensure the chosen synonym fits the intended context and nuance.

Noun

1. a book containing a classified list of synonyms