1. Ideogram: This is the more common meaning and refers to a written symbol that represents an idea or concept directly, rather than a sound. Examples include:
* Pictograms: These are visual symbols that resemble the object they represent. Examples include the symbols for "sun" or "tree" in some writing systems.
* Logograms: These are symbols that represent a whole word or morpheme (meaningful unit of language). Examples include the Chinese character for "sun" (日) or the Egyptian hieroglyph for "life" (𓂭).
2. Ideograph (less common): This term is used to describe a symbol that represents a concept or an abstract idea, often without a direct visual relationship. Examples include:
* Mathematical symbols: "+" represents "addition" and "x" represents "multiplication".
* Traffic signs: A red octagon signifies "stop".
* Political symbols: A dove represents "peace" and a skull and crossbones represents "danger".
In summary, "ideograph" usually refers to a written symbol that represents an idea or concept. It can encompass both pictograms and logograms, as well as symbols that represent abstract ideas without direct visual connection.
It's important to note that the term "ideogram" is more commonly used than "ideograph" to refer to symbols representing ideas.