* Noun: This is the most common use. It refers to the place where two lines or surfaces meet at an angle.
* Example: "He turned the corner and saw the store."
* Verb: It can mean to force someone into a difficult situation or to push someone into a corner.
* Example: "The lawyer tried to corner the witness with difficult questions."
* Adjective: It can be used to describe something that is located in a corner or that is characteristic of a corner.
* Example: "They built a corner fireplace."
So, without context, it's hard to say exactly which part of speech it is.