Letter case in the context of "Kilo-"

The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BC. It was derived from the earlier Phoenician alphabet, and is the earliest known alphabetic script to systematically write vowels as well as consonants. In Archaic and early Classical times, the Greek alphabet existed in many local variants, but, by the end of the 4th century BC, the Ionic-based Euclidean alphabet, with 24 letters, ordered from alpha to omega, had become standard throughout the Greek-speaking world and is the version that is still used for Greek writing today.

The uppercase and lowercase forms of the 24 letters are:

Devanagari (/ˌdeɪvəˈnɑːɡəri/ DAY-və-NAH-gə-ree; in script: देवनागरी, IAST: Devanāgarī, Sanskrit pronunciation: [deːʋɐˈnaːɡɐriː]) is an Indic script used in the Indian subcontinent. It is a left-to-right abugida (a type of segmental writing system), based on the ancient Brāhmī script. It is one of the official scripts of India and Nepal. It was developed in, and was in regular use by, the 8th century CE. It had achieved its modern form by 1000 CE. The Devanāgarī script, composed of 48 primary characters, including 14 vowels and 34 consonants, is the fourth most widely adopted writing system in the world, being used for over 120 languages, the most popular of which is Hindi (हिन्दी).

The orthography of this script reflects the pronunciation of the language. Unlike the Latin alphabet, the script has no concept of letter case, meaning the script is a unicameral alphabet. It is written from left to right, has a strong preference for symmetrical, rounded shapes within squared outlines, and is recognisable by a horizontal line, known as a शिरोरेखा śirorekhā, that runs along the top of full letters. In a cursory look, the Devanāgarī script appears different from other Indic scripts, such as Bengali-Assamese or Gurmukhi, but a closer examination reveals they are very similar, except for angles and structural emphasis.

The Arabic alphabet, or the Arabic abjad, is the Arabic script as specifically codified for writing the Arabic language. It is a unicameral script written from right-to-left in a cursive style, and includes 28 letters, of which most have contextual forms. Unlike the modern Latin alphabet, the script has no concept of letter case. The Arabic alphabet is an abjad, with only consonants required to be written (though the long vowels – ā ī ū – are also written, with letters used for consonants); due to its optional use of diacritics to notate vowels, it is considered an impure abjad.

The cent is a monetary unit of many national currencies that equals a hundredth (1⁄100) of the basic monetary unit. The word derives from the Latin centum, 'hundred'.

The cent sign is commonly a simple minuscule (lower case) letter c. In North America, the c is crossed by a diagonal or vertical stroke (depending on typeface), yielding the character ¢.

The dollar sign, also known as the peso sign, is a currency symbol consisting of a capital ⟨S⟩ crossed with one or two vertical strokes ($ or depending on typeface), used to indicate the unit of various currencies around the world, including most currencies denominated "dollar" or "peso". The explicitly double-barred sign is called cifrão in the Portuguese language.

The sign is also used in several compound currency symbols, such as the Brazilian real (R$) and the United States dollar (US$): in local use, the nationality prefix is usually omitted. In countries that have other currency symbols, the US dollar is often assumed and the "US" prefix omitted.

The ISO basic Latin alphabet is an international standard (beginning with ISO/IEC 646) for a Latin-script alphabet that consists of two sets (uppercase and lowercase) of 26 letters, codified in various national and international standards and used widely in international communication. They are the same letters that comprise the current English alphabet. Since medieval times, they are also the same letters of the modern Latin alphabet. The order is also important for sorting words into alphabetical order.

The two sets contain the following 26 letters each:

A unicase or unicameral alphabet is a writing script that has no separate cases for its letters. Semitic abjads such as Hebrew and Arabic, Brahmic scripts such as Devanagari, Tamil and Thai, Chinese characters, Hangul and the Iberian and Georgian scripts are unicase writing systems, while scripts like Latin, Greek, Cyrillic and Armenian are bicameral, as they have two cases for each letter, e.g. B and b, Б and б, Β and β, or Բ and բ. Individual characters can also be called unicameral if they are used as letters with a generally bicameral alphabet but have only one form for both cases; for example, the ʻokina as used in Polynesian languages and the glottal stop as used in Nuu-chah-nulth are unicameral.

Most modern writing systems originated as unicase orthographies. The Latin script originally had only majuscule forms directly derived from the Greek alphabet, which were originally viable for being chiseled into stone. At the same time, everyday writing was carried out in a cursive variant of the block capitals, which during the Middle Ages evolved into new letterforms for use in running text that were more legible and faster to write with an ink pen, such as Carolingian minuscule. Originally, use of the two forms was mutually exclusive, but it became a common compromise to use both in tandem, which ultimately had additional benefits in areas such as legibility. The later minuscule became the "lowercase" forms, while the original majuscule became the "uppercase" forms.

In letterpress printing and typesetting, a composing stick is a tray-like tool used to assemble pieces of metal type into words and lines, which are then transferred to a galley before being locked into a forme and printed. Many composing sticks have one adjustable end, allowing the length of the lines and consequent width of the page or column to be set, with spaces and quadrats of different sizes being used to make up the exact width. Early composing sticks often had a fixed measure, as did many used in setting type for newspapers, which were fixed to the width of a standard column, when newspapers were still composed by hand.

The compositor takes the pieces of type from the boxes (compartments) of the type case and places them in the composing stick, working from left to right and placing the letters upside-down with the nick to the top.

An acronym is an abbreviation formed using the initial letters of a multi-word name or phrase. Acronyms are often spelled with the initial letter of each word in all caps with no punctuation.

In English the word is used in two ways. In the narrow sense, an acronym is a sequence of letters (representing the initial letters of words in a phrase) when pronounced together as a single word; for example, NASA, NATO, or laser. In the broad sense, the term includes this kind of sequence when pronounced letter by letter (such as GDP or USA). Sources that differentiate the two often call the former acronyms and the latter initialisms or alphabetisms. However, acronym is popularly used to refer to either concept, and both senses of the term are attributed as far back as the 1940s. Dictionary and style-guide editors dispute whether the term acronym can be legitimately applied to abbreviations which are not pronounced as words, and there is no general agreement on standard acronym spacing, casing, and punctuation.