Definition, Meaning & Synonyms
coaster
noun
/ˈkoʊstər/

Definition
A coaster is a small, flat object used to protect surfaces from damage caused by drinks or cups.

Examples
- She placed her mug on the wooden coaster to protect the table.
- The coasters were made of ceramic and featured beautiful designs.
- During the party, everyone complimented the colorful coasters.

Meaning
Coasters help prevent water rings and heat marks from beverages on tables and other surfaces.

Synonyms
- mat
- pad
- underlay