Definition

A mark or impression left by the thumb, often used for identification purposes.

Example

The detective found a thumbprint on the glass that helped solve the case.

Conversation

Did you know that your thumbprint is unique to you?

Really? I had no idea it was that special.

Yeah, it's like nature's own identification card.

That's pretty cool! I guess it makes us all one of a kind.

Synonyms & Antonyms

Root Explanation

Thumbprint → It is formed from "thumb" (from Old English *þūma*, meaning the short, thick digit on the hand) and "print" (from Old French *printe*, meaning to impress or mark). The word "thumbprint" refers to the unique impression made by the thumb on a surface, typically used for identification.

Memory Tip

Think of the 'thumb' as the unique digit that leaves a 'print' or mark, which helps you remember that a thumbprint is the impression made by your thumb.

Visually Confused Words