hallmarks

A hallmark is a distinctive feature or characteristic that makes something special and recognizable. You might think of a logo on a famous brand's products as its hallmark.

When we talk about hallmarks in everyday life, we often use it to describe a unique feature of someone or something that sets them apart from others. For example, if you're talking about your favorite artist, their style might be considered their hallmark – everyone knows what they sound like and look like just by seeing or hearing their name. If you hear someone say, "That's a hallmark of his music," it means that particular sound or way of doing things is really distinctive and people can usually tell it's him right away.