Question

I am going to post office.. Which parts of speech Here the word 'post' is?

Answer 1

If u just want to know the parts of speech of the post in the sentence, it would be 'adjective'. But, 'post office' both of these two words are 'noun' together.

Answer 2

Basically the word 'post' in the sentence is a noun adjective. When a noun used in any sentence that works as an adjective , we call it noun adjective.

Example: we are going to railway station . Here the word 'railway' is also a noun adjective.