headmark

noun
UK /ˈhɛdmɑːk/
US /ˈhɛdmɑːrk/

A mark or sign on the head of something that helps you know what it is.

The farmer put a headmark on each sheep so he could tell them apart.


OTHER MEANINGS

2. A guiding sign or landmark used to find your way.

The tall tower was a headmark for sailors coming into the harbor.

3. A heading or title at the top of a page or document.

Each chapter began with a bold headmark.

4. A distinguishing feature or characteristic of a person or thing.

Kindness was the headmark of her character.