People often mix up less and fewer — but there’s a simple rule that will help you get it right every time!
Fewer is used with countable nouns — things you can count one by one.
If you can count the items individually (books, apples, mistakes), use fewer.
Less is used with uncountable nouns — things you can't count one by one, like time, money, or water.
Use less for things that are seen as a whole or in amounts, not separate items.
Fewer = countable
Less = uncountable
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