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Symbols

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Unicode symbol

Which Unicode block includes symbols for playing cards?

Arrow (symbol)

What is the name of the symbol used to indicate the NAND operator in mathematical logic?

Hazard symbol

What symbol is used to signify the actual or potential presence of ionizing radiation?

Hazard symbol

What symbol is used to warn of the danger of death from poisonous substances?

Hazard symbol

What symbol is commonly used to warn of a generic hazard?