â¢ PB (noun). The noun PB has 1 sense: 1. a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey. Familiarity information: PB used as a noun is very rare.yponyms (each of the following is a kind of Pb): hard lead (unrefined lead that is hard because of the impurities it contains). antimonial lead; hard lead (a lead alloy that contains about 5% antimony). pig lead (lead that is cast in pigs).
Revere, Massachusetts. Revere is a city in Suffolk County, Massachusetts, United States, located approximately 5 miles (8.0 km) from downtown Boston. It is named after the American Revolutionary War patriot Paul Revere. As of the 2010 United States Census, the city has a population of 51,755 inhabitants.
Paul Revere was an American silversmith, engraver, early industrialist, and Patriot in the American Revolution. He is best known for his midnight ride to alert the colonial militia in April 1775 to the approach of British forces before the battles of Lexington and Concord, as dramatized in Henry Wadsworth Longfellow's poem, Paul Revere's Ride. At age 41, Revere was a prosperous, established and prominent Boston silversmith. He had helped organize an intelligence and alarm system to keep watch