Types

• Geometry: A figure with four sides is called a square or a rectangle.
• Number: 4
• Ordinal, Number: 4^th
• Ordinal, Word: fourth
• Roman Numeral: IV
• Word: four

List

A list of 4s:

• Four Elements
• Four Card Suits
• Four quarters in a dollar
• Four quarts in a gallon
• Three is a company, four is a crowd. (a saying)

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