Determiners are words that express information about a noun such as definiteness, proximity, relationships and quantity. They typically come before nouns.
They are different than adverbs, which describe the qualities of a nouns.
They are different than adjectives which describe nouns independently of the speaker. For example, a green sweater is always a green sweater.
However, to say “this sweater” or “my sweater” determines the context of the green sweater relative to the speaker.
Six types of determiners
- Articles: A dog is sitting on the couch. (See Articles: The and A)
- Possessive determiners: My house is your house.
- Demonstrative determiners: This puppy ate that shoe.
- Interrogative determiners: Which one goes in what box?
- Numerals: Two thieves stole a dozen cars.
- Quantifiers: Many students do all of their homework after dinner.