periphery Antonyms

center substance trunnion umbilicus underbuilding vertebra viscera vitals waist within womb bedrock fundamentals building block meeting place node stylobate stereobate nub nubble nucleolus nucleus oculus omphalos penetralia pip pith pivot radicle rhizome root crown jewel nerve center nerve centre CBD centre of attention rallying point showpiece town center town centre central core central location urban centre center of a city center of town centre of the city urban core HQ centre of gravity center of gravity