noun a word (other than a pronoun) used to identify any of a class of people, places, or things
preposition a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause
article a word that is used with a noun to show whether the thing or person being referred to is known about, has been mentioned before, is being introduced for the first time, or is general
Following a recipe precisely without making any changes or substitutions
Quoting a source verbatim without any changes or alterations
Following a contract or agreement to the exact specifications outlined
Constructing a building or structure exactly as planned without deviating from the blueprints
Creating a garment or accessory exactly as designed without any alterations
In the publishing industry, a writer must follow the guidelines and instructions given by the editor to the letter in order to ensure that their work meets the publication's standards.
When conducting psychological assessments, it is important for psychologists to follow the standardized testing procedures to the letter to ensure the accuracy and reliability of the results.