* A comprehensive and authoritative dictionary: Existing dictionaries were limited in scope, often focusing on specific topics or employing idiosyncratic methods. Johnson aimed to provide a comprehensive resource that covered the entire English vocabulary, including its etymology, usage, and definitions.
* Standardization of spelling and grammar: English spelling and grammar were highly variable, leading to inconsistencies and confusion. Johnson's dictionary aimed to promote a more standardized language by offering preferred spellings and grammatical constructions.
* Clear definitions: Many existing dictionaries provided vague or incomplete definitions, making it difficult to understand the true meaning of words. Johnson's dictionary emphasized clarity and precision in its definitions, aiming to provide a more accurate and accessible resource.
* A record of English usage: There was a lack of documentation of how English was actually used in different contexts. Johnson's dictionary, through its inclusion of quotations, provided a valuable record of the language's evolution and usage.
In summary, the English language lacked a comprehensive, authoritative, standardized, and clearly defined dictionary when Johnson undertook his work. His dictionary aimed to address these shortcomings and provide a foundation for the development of the modern English language.