Each word in English language has a specific name depending on the position it holds in a sentence. Today we will discuss about on such position dependent word that is called the determiner.
A determiner is a word that introduces a noun or precedes a noun. The function of the determiner is to introduce a noun or limit its application in a sentence.
Three boys were playing together.
Three in the above sentence is the determiner that limits the application of noun boys in the above sentence.
The door was open.
In the above sentence, the is the determiner that is coming before the noun door.
There is one point to note while considering determiners is that a singular noun must always has a determiner before it whereas a plural noun may or may not have one.