A whitespace character is a character data element that represents white space when text is rendered for display by a computer.
Letterlike Symbols is a Unicode block containing 80 characters which are constructed mainly from the glyphs of one or more letters. In addition to this block, Unicode includes full styled mathematical alphabets, although Unicode does not explicitly categorize these characters as being "letterlike."
Supplemental Mathematical Operators is a Unicode block containing various mathematical symbols, including N-ary operators, summations and integrals, intersections and unions, logical and relational operators, and subset/superset relations.
The Unicode Consortium and the ISO/IEC JTC 1/SC 2/WG 2 jointly collaborate on the list of the characters in the Universal Coded Character Set. The Universal Coded Character Set, most commonly called the Universal Character Set, is an international standard to map characters, discrete symbols used in natural language, mathematics, music, and other domains, to unique machine-readable data values. By creating this mapping, the UCS enables computer software vendors to interoperate, and transmit—interchange—UCS-encoded text strings from one to another. Because it is a universal map, it can be used to represent multiple languages at the same time. This avoids the confusion of using multiple legacy character encodings, which can result in the same sequence of codes having multiple interpretations depending on the character encoding in use, resulting in mojibake if the wrong one is chosen.
Mathematical Operators is a Unicode block containing characters for mathematical, logical, and set notation.
The Basic Latin Unicode block, sometimes informally called C0 Controls and Basic Latin, is the first block of the Unicode standard, and the only block which is encoded in one byte in UTF-8. The block contains all the letters and control codes of the ASCII encoding. It ranges from U+0000 to U+007F, contains 128 characters and includes the C0 controls, ASCII punctuation and symbols, ASCII digits, both the uppercase and lowercase of the English alphabet and a control character.
The Unicode Standard assigns various properties to each Unicode character and code point.
CJK Symbols and Punctuation is a Unicode block containing symbols and punctuation used for writing the Chinese, Japanese and Korean languages. It also contains one Chinese character.
Tibetan is a Unicode block containing characters for the Tibetan, Dzongkha, and other languages of China, Bhutan, Nepal, Mongolia, northern India, eastern Pakistan and Russia.
Myanmar is a Unicode block containing characters for the Burmese, Mon, Shan, Palaung, and the Karen languages of Myanmar, as well as the Aiton and Phake languages of Northeast India. It is also used to write Pali and Sanskrit in Myanmar.
Myanmar Extended-A is a Unicode block containing Myanmar characters for writing the Khamti Shan and Aiton languages.
A variant form is an alternate glyph for a character, encoded in Unicode through the mechanism of variation sequences: sequences in Unicode that consist of a base character followed by a variation selector character.
Variation Selectors Supplement is a Unicode block containing additional variation selectors beyond those found in the Variation Selectors block.
Phags-pa is a Unicode block containing characters from the 'Phags-pa script promulgated as a national script by Kublai Khan, the founder of the Yuan dynasty. It was used primarily in writing Mongolian and Chinese, although it was intended for the use of all written languages of the Mongol Empire.
General Punctuation is a Unicode block containing punctuation, spacing, and formatting characters for use with all scripts and writing systems. Included are the defined-width spaces, joining formats, directional formats, smart quotes, archaic and novel punctuation such as the interrobang, and invisible mathematical operators.
Egyptian Hieroglyphs is a Unicode block containing the Gardiner's sign list of Egyptian hieroglyphs.
Halfwidth and Fullwidth Forms is the name of a Unicode block U+FF00–FFEF, provided so that older encodings containing both halfwidth and fullwidth characters can have lossless translation to/from Unicode. It is the second-to-last block of the Basic Multilingual Plane, followed only by the short Specials block at U+FFF0–FFFF. Its block name in Unicode 1.0 was Halfwidth and Fullwidth Variants.
Variation Selectors is a Unicode block containing 16 variation selectors used to specify a glyph variant for a preceding character. They are currently used to specify standardized variation sequences for mathematical symbols, emoji symbols, 'Phags-pa letters, and CJK unified ideographs corresponding to CJK compatibility ideographs. At present only standardized variation sequences with VS1, VS2, VS3, VS15 and VS16 have been defined; VS15 and VS16 are reserved to request that a character should be displayed as text or as an emoji respectively.
Manichaean is a Unicode block containing characters historically used for writing Sogdian, Parthian, and the dialects of Fars.
Egyptian Hieroglyph Format Controls is a Unicode block containing formatting characters that enable full formatting of quadrats for Egyptian hieroglyphs.
Top-Down, right across the page, although the Unicode code charts cite the characters rotated to horizontal orientation as this is the orientation of glyphs in a font that supports layout in vertical orientation.