Bessemer converter/ʹbesimə/ noun

• boredom
• borehole
• borer
• bore/scare the pants off somebody
• boric
• boric acid
• boride
• boring
• borlotti bean
• born
• born-again
• born and bred
• borne
• Bornean
• bornite
• born on the wrong side of the blanket
• boron
• boronia
• boron nitride
• borosilicate glass
• borough
• borrow
• borrow pit
• borscht
• Borstal