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What is a Determiner?

Determiners are one of the nine parts of speech. They are words like the, an, this, some, either, my or whose. All determiners share some grammatical similarities:

Look at these example noun phrases. The first word in each noun phrase is a determiner:

Some grammarians do not give determiners a word class of their own, but treat them as adjectives.

Learn more about determiners.