Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun br

2 senses of br

Sense 1
bromine, Br, atomic number 35 -- (a nonmetallic heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water)
       => chemical element, element -- (any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter)
       => halogen -- (any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions)

Sense 2
Red Brigades, Brigate Rosse, BR -- (a Marxist-Leninist terrorist organization that arose out of a student protest movement in the late 1960s; wants to separate Italy from NATO and advocates violence in the service of class warfare and revolution; mostly inactive since 1989)
       INSTANCE OF=> terrorist organization, terrorist group, foreign terrorist organization, FTO -- (a political movement that uses terror as a weapon to achieve its goals)