certitude

n.确实, 确信

cerebration, ceremonial, ceremonially, ceremonious, ceremoniously, ceremony, cerise, CERN (also Cern), cert, Cert Ed, certain, certainly, certainty, certifiable, certificate, Certificate of Secondary Education, certificated, certification, certified cheque, certify, cervical, cervix, Cesar Frank, Cesarian (also Cesarean), cessation, cession, cesspit, CET, cf, CFE, ch (also chap), cha-cha, Chablis, chafe, chaff, chaffinch, chafing-dish, chagrin, chain, chain reaction,