What is a 'Cup' and What is a 'Glass' - Is there a Difference?

Most people agree with me that if it is made of glass it is a 'glass.' Most of everything else is called a 'cup.'

160ml Heart Shape Double Wall Glass Coffee Cups Different Sizes

The Lycurgus Cup; 4th-century, Roman glass cage cup. Made of a

Choose The Best Wine Glasses For Your Taste

What is the difference between a glass and a cup? - Quora

The Best Liquid Measuring Cups

Your Premier Guide to Types of Wine Glasses

【Package included】You will receive 4pcs double spouts glass measuring cups in capacity about 75 ml/2.5 Oz, in top diameter of 5.4 cm/2.13 inch and

4Pcs Double Spouts Glass Measuring Cups, FHDUSRYO 2.5 Oz Espresso Shot Glass with Handle and Dual Scale, Mini Milk Cup Clear Glass Triple Pitcher

Different Types Glassware Cups with Inner Patterns for Restaurant

3D Drinking Glass Cup with Christmas Tree Figurine Inside Stemless

The Lycurgus Cup; 4th-century, Roman glass cage cup. Made of a

3D Drinking Glass Cup with Christmas Tree Figurine Inside Stemless