Cups vs Glass

When to use each in English, with meaning, register, and examples.

Cups

Top 1,000 (very common)

Glass

Top 1,000 (very common)A1noun
 CupsGlass
Pronunciation🇬🇧 //kʌps//🇺🇸 //kʌps//🇬🇧 /["/ɡlɑːs/"]/🇺🇸 /["/ɡlæs/"]/
MeaningContainers used for drinking beverages.A hard, transparent material used for making windows and containers.
ExampleShe poured tea into the cups before serving them.The window is made of glass.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)
CEFR level-A1
Part of speechnoun
Collocationscoffee cups, measuring cups, plastic cups, paper cups, championship cupsclear, coloured/​colored, opaque, piece, pane, sheet, blow, make, break, break, crack, shatter, beads, bottle, bowl, behind glass, on glass, under glass, brimming, full, half-empty, have, drink, sip, clink, in a/​the/​somebody’s glass, glass of, (a) glass in (your) hand
Antonyms-opaque, solid
Common mistakesConfusing 'cup' (singular) with 'cups' (plural)., Using 'cup' when referring to multiple types or sizes., Mistaking the term for 'mugs' which are typically larger.Confusing 'glass' with 'glasses' for the plural of drinking containers., Using 'glass' instead of 'glaze' when referring to pottery., Mispronouncing 'glass' as 'glance'.
Usage notesUse 'cups' to refer to drinking containers, often used in informal or casual contexts. Can also refer to awards in sports.Use 'glass' to refer to the material or objects made from it, like cups or windows. Avoid using it in very technical contexts without specifying what type (e.g. 'safety glass').

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Cups
Glass

Frequently asked questions: Cups vs Glass

What's the difference between Cups and Glass?

Cups: Containers used for drinking beverages. Glass: A hard, transparent material used for making windows and containers.

Can you show an example of each?

Cups: She poured tea into the cups before serving them. Glass: The window is made of glass.

Can I use Cups and Glass interchangeably?

Not always. Cups and Glass are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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