PPB can stand for: Production possibility boundary , a concept in economics Parts per billion, describing small values of miscellaneous dimensionless quantities Portland Police Bureau, in Portland, Oregon, U.S. Partido Progressista Brasileiro, former name of Progressive Party of Brazil Pleuropulmonary blastoma, a type of lung cancer PPB Group, a Malaysian company
==See also== Point Pleasant Beach, New Jersey List of Pirate Parties
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).