Definitions

1. noun

a distinctive or typical feature or characteristic of something

“The company’s innovative approach was a hallmark of their success.”

2. noun

a trademark or brand name, especially one used to guarantee the quality of a product

“The Hallmark greeting cards are known for their high quality and unique designs.”

3. verb

to characterize or distinguish something as a result of a particular feature

“The new policy will hallmark the company’s commitment to sustainability.”