อภิธานศัพท์
อธิบายคำศัพท์ Unicode การเข้ารหัส และการพิมพ์
Box Drawing Characters
Unicode characters (U+2500–U+257F) designed to draw boxes and tables in text-based interfaces and terminal emulators.
TypographyBullet Character
A typographic symbol (•, U+2022) used for list items and decorative purposes in text.
TypographyCurly Quotes (Smart Quotes)
Typographically correct quotation marks (“ ” ‘ ’) as opposed to straight/typewriter quotes (" ').
TypographyDiacritical Mark
A mark added to a letter to change its pronunciation or meaning (e.g., acute accent é, umlaut ü, tilde ñ).
TypographyEllipsis
A single character (…, U+2026) representing three dots, preferred over typing three periods.
TypographyEm Dash
A typographic dash (—, U+2014) the width of a letter M, used for parenthetical statements and breaks in thought.
TypographyEn Dash
A typographic dash (–, U+2013) the width of a letter N, used for ranges (e.g., 1–10) and relationships.
TypographyFont Fallback
A mechanism where the browser uses alternative fonts when the primary font lacks a glyph for a character.
TypographyFullwidth & Halfwidth
Character variants occupying different widths in CJK typography. Fullwidth characters occupy the same space as CJK ideographs.
TypographyGlyph
The visual representation of a character as rendered by a specific font. One character can have multiple glyphs across different fonts.
TypographyKerning
The adjustment of spacing between specific character pairs for improved visual appearance (e.g., AV, To).
TypographyLetter Spacing (Tracking)
Uniform adjustment of space between all characters in a block of text, distinct from kerning.
TypographyLigature
A single glyph combining two or more characters (e.g., fi, fl). Can be typographic (font feature) or Unicode characters.
TypographyNon-Breaking Space
A space character (U+00A0) that prevents automatic line breaking at its position, keeping adjacent words together.
TypographySoft Hyphen
An invisible character (U+00AD) that marks where a word may be hyphenated at a line break. Invisible otherwise.
TypographyTofu (Missing Glyph)
The empty rectangle (□) displayed when a font cannot render a character, named for its tofu-like appearance.
TypographyWhitespace Characters
Characters that represent horizontal or vertical space (space, tab, newline, etc.) but have no visible glyph.
TypographyZero-Width Space
An invisible Unicode character (U+200B) that indicates a possible line break point without displaying any visible space.
Typography