BIR or Bir may refer to:
== Acronyms (BIR) == Bangladesh Infantry Regiment Rapid Intervention Brigade (), Cameroon military unit , Macau identity card Brainerd International Raceway, Minnesota, USA British Institute of Radiology Birmingham International Raceway, Alabama, US Board of Invention and Research, UK Admiralty, WWI Burma's IOC country code Bureau of Internal Revenue, Philippines tax agency Baculovirus Inhibitor of apoptosis protein Repeat, in some proteins Bir railway station's station code Biratnagar Airport, IATA code BIR
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).