Is liner a common or proper?

"Liner" can be both a common noun and a proper noun, depending on the context:

Common Noun:

* General meaning: A lining, especially for clothing, containers, or other objects.

* Example: "The dress had a silk liner."

* Specific types: When referring to a specific type of liner, it can function as a common noun.

* Example: "We use a plastic liner to keep our trash bin clean."

Proper Noun:

* Brand name: If "Liner" is the name of a specific brand or product, then it becomes a proper noun.

* Example: "I bought a pair of Liner jeans."

To determine whether "Liner" is common or proper, consider the context and whether it refers to a specific brand or product.