https://demo.vercel.pub/platforms-starter-kit 이거 보다가 정의가 궁금해져서 좀 찾아봄.

Multi:

Single:

Header: "The upper portion of a page (or other) layout."

Heading: "The title or topic of a document, article, chapter, or of a section thereof."

via https://diffsense.com/diff/header/heading