Terminology
New or Recently Introduced Terms 

  Cup (c) (customary unit of measure for liquid volume)

 Customary system of measurement (measurement system commonly used in the United States that includes such units as   yards, pounds, and gallons)

 Customary unit (e.g., foot, ounce, quart)

 Gallon (gal) (customary unit of measure for liquid volume)

 Metric system of measurement (base-ten system of measurement used internationally that includes such units as meters, kilograms, and liters)

 Metric unit (e.g., kilometer, gram, milliliter) 

     Ounce (oz) (customary unit of measure for weight)

 Pint (pt) (customary unit of measure for liquid volume)

 Pound (lb) (customary unit of measure for weight) 

     Quart (qt) (customary unit of measure for liquid volume)