Upper case letters, also known as uppercase or capital letters, refer to the larger variant of alphabetic characters used in written language. Upper case letters are distinguished from their counterpart, lower case letters, by their distinct form and size. They are characterized by their clear, bold, and prominent appearance and are typically utilized at the beginning of sentences, proper nouns, and acronyms.
In the English language, upper case letters consist of the 26 letters of the alphabet: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, and Z. These letters possess a standardized shape that is universally recognized and their capitalization plays a crucial role in conveying meaning and aiding readability in texts.
Their primary function is to mark the start of a sentence or a proper noun, thus distinguishing it from ordinary text and helping readers navigate a text more effortlessly. Additionally, upper case letters are employed to signify emphasis, purposefully highlight certain phrases or words, and follow particular grammatical rules or style conventions. It is worth noting that upper case letters are generally used sparingly in most written forms, as an excessive use of capitalization can hamper readability and affect the overall aesthetic of a text.
