Quantifiers are words that indicate number, amount, or quantity. Some common quantifiers are: some, a few, many, little, a great deal of. Quantifiers like some, a lot of, plenty of can be used with both countable and uncountable nouns. Others like several, many are used only with countable nouns, while little, much are used only with uncountable nouns. Quantifiers help provide information about how much or how many of something is being referred to.