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Symbols and glyphs are visual representations that convey meaning. A symbol is a character or image that stands for or suggests something else by reason of relationship, association, convention, or resemblance. Glyphs, on the other hand, are often defined as a specific graphical representation of a character or part of a character. While the terms are sometimes used interchangeably, glyphs can be considered a more specific type of symbol, focusing on the visual form of a written character.
The use of symbols and glyphs is ancient and widespread, appearing across cultures and throughout history.