<bdi>
Bidirectional isolation: renders text of unknown direction without disturbing its surroundings.
Baseline: Widely available · Inline text semantics
When to use it
Around user-generated names and titles in lists — without it, an RTL name can visually swallow the number next to it.
When not to
Not needed for text whose direction you already control with dir on a container.
Example
Top contributor: أورى — 12 edits
<p>Top contributor: <bdi>أورى</bdi> — 12 edits</p>