Definitions

1. noun

A small image or icon that represents a larger image, document, or file, especially on a computer screen or website.

“The website displays a thumbnail of the product for easy previewing.”

2. verb

To reduce the size of an image or document to a smaller representation, such as a thumbnail.

“The software can thumbnail large images for faster viewing.”

3. adjective

Represented by a small image or icon, especially on a computer screen or website.

“The thumbnail view allows users to quickly scan through the images.”