- In European and West Asian typography and penmanship, the line upon which most letters “sit” and below which descenders extend. ← Wikipedia
- In web development, an indicator of web platform support referring to “features natively supported in the core browser set [Chrome, Safari, Edge, and Firefox] for at least two major versions.” The “Web Platform Baseline” was announced by Google and Mozilla in 2023. ↑ web.dev/baseline