Definition, Meaning & Synonyms
liner
noun
/ˈlaɪnər/

Definition
A liner is a material or substance that is used to cover the inside surface of something.

Examples
- The artist used a black liner to define the edges of the painting.
- Many boats have a liner to help keep them waterproof.
- The makeup liner has become a popular choice for defining eyes.

Meaning
In various contexts, a liner serves to protect or enhance the function of the item it is lining.

Synonyms
- coating
- covering
- sheet