Symbolic
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Symbols that have not
logically represent connection between them and the things they represent. A
symbolic sign would be a red octagon shaped sign. When a person sees this, they
would automatically know it means stop. The sign has an arbitrary connection to
its meaning.
Iconic
Iconic signs most closely
resemble the thing they represent. An example of an iconic sign would be the
sign outside of public restrooms that indicates them as male or female
restrooms. The sign resembles what it stands for.
Indexical
Have a logical,
commonsense connection to the thing or idea they represent rather than a direct
resemblance to the object. An example of an indexical sign would be smoke. The
smoke would indicate that there was a fire. This means that there is a
casual link between the sign and its meaning.
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