The style of letters, figures, and symbols in a document is called the "typography." Typography encompasses various elements such as font type, size, spacing, and layout, which collectively contribute to the overall visual appearance and readability of the text. Effective typography enhances communication by making content more engaging and accessible to the reader.
Symbols
Table of figures
The letters that identify elements , are called Symbols.
That is called a font.
Because the symbols he invented stood for syllables rather than for individual letters, Sequoyah's system was called a "syllabary".
Those markings are called diacritics. They are symbols added to letters to indicate specific sounds or pronunciation in phonetic transcription.
Entering text and symbols in a document is commonly referred to as "typing" or "text input." This process involves using a keyboard or other input devices to create and edit content in digital formats. It is a fundamental activity in word processing and document creation.
A system of spelling is called orthography. It includes rules and conventions for how letters and symbols are used to represent sounds in a language.
A handwritten document is commonly referred to as a manuscript. This term typically applies to texts that are written by hand, especially before the invention of the printing press. Manuscripts can include a variety of written works, such as books, letters, and historical documents. In contemporary contexts, handwritten notes or letters may simply be called handwritten notes or letters.
Aside from Kanji, there is Hiragana and Katakana (which are under a group called Kana). When Japanese is written using English letters (technically Latin letters), it's called "romaji" or romanization.
The letters are called Symbols. They represent elements on periodic table.
One example of a language that uses non-Latin letters and symbols is Japanese. Japanese writing system includes characters called kanji, hiragana, and katakana, which are different from the Latin alphabet used in English.