XBB may refer to: SARS-CoV-2 Omicron variant § XBB, a subvariant of the virus that causes COVID-19 The aboriginal Lower Burdekin languages of Australia The European Monetary Unit used in bond markets Blubber Bay Seaplane Base, British Columbia, Canada – see List of airports by IATA airport code: X
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).