[original question] Do any words words exist that are a countable and an uncountable noun at the same time?
Are there any nouns that are both countable and uncountable?
Are there any words which are uncountable and uncountable at the same time?
[original question] Do any words words exist that are a countable and an uncountable noun at the same time?
Are there any nouns that are both countable and uncountable?
Are there any words which are uncountable and uncountable at the same time?
Among other things, just about any liquid could be a countable and uncountable (mass) noun in the same word. Take beer, for example.
Give me some beer. [mass noun]
Give us five beers. [count noun]
Almost anything normally uncountable - certainly it applies to most food items - can be made countable if one uses a simple plural as an alternative to varieties of. e.g. There are countless cheeses (Varieties of cheese), whiskies, wines, beers, yoghurts, breads, meats, hams, etc.
It can also apply as substitute in the case of bottles of, jars of, cups of etc. Five beers is too many! How many whiskies has he drunk? Two coffees please.
I was once told that nouns are either countable or uncountable. Then I learned that some nouns can be used as both countable or uncountable. Now, I don't think I have encountered a so-called uncountable noun that cannot also be used as a countable noun. Sometimes this involves a change in meaning (the speed of light; the lights on my Christmas tree; Time flies; how many times have I told you that?), sometimes it means a kind or serving of uncountable noun (a coffee, a beer).
The nouns which can be countable or uncountable depending on the context are originally pluralia tantum, i.e. uncountable. But they can be used in singular if there is a portion of the substance referred by the noun.
The sun was blazing and there was no pool in view. He dreamed of a motel and a barman who could give him a water.
Mother always told her daughter that carbonated drinks are harmful but she would always order a coke having a snack in a cafe.