Are there (nearly) universal symbols for SAME and DIFFERENT?

1. What are the universal symbols?
2. Do symbols have universal meaning?
3. Why are universal symbols important?

What are the universal symbols?

The term "universal symbol" refers to a design, icon, or image that is commonly used in an informational manner and conveys a widely recognized or readily understood meaning when displayed in its relevant context.

Do symbols have universal meaning?

Because we look for meaning in everything around us, anything can become a symbol as long as people interpret it to mean something other than its literal definition. Some symbols, however, have become so ingrained within our cultural sphere that they carry an almost universal meaning.

Why are universal symbols important?

The symbols were designed to bridge language, age, culture and gender. Universally understood, these symbols represent basics including identifying bathroom facilities, escalators, elevators and stairs, food, handicap ramps, exits & entrances and more.