[ thuhm-neyl ]
/ ˈθʌmˌneɪl /


the nail of the thumb.
anything quite small or brief, as a small drawing or short essay.
Printing. a small, rough dummy.
Also called porkchop. Journalism, Printing. a half-column portrait in a newspaper.


quite small or brief; concise: a thumbnail description of Corsica.

verb (used with object)

to make a thumbnail sketch or description of.

Origin of thumbnail

First recorded in 1595–1605; thumb + nail Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for thumbnail

British Dictionary definitions for thumbnail

/ (ˈθʌmˌneɪl) /


the nail of the thumb
(modifier) concise and briefa thumbnail sketch
computing a small image which can be expanded
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012