cer·ti·fied 
/ˈsɚtəˌfaɪd/ adjective
/ˈsɚtəˌfaɪd/ adjective 1 : having met the official requirements that are needed to do particular type of work
▪ a certified instructor ▪ You must be certified in order to practice medicine. ▪ The carpentry work must be done by someone who is certified for the job. ▪ nationally certified [=(Brit) certificated] teachers ▪ a board-certified doctor [=a doctor whose qualifications have been approved by an official group] 2 chiefly US a : officially approved as having met a standard
▪ The food/restaurant is certified kosher. ▪ certified organic vegetables
b informal : real or genuine
▪ a certified celebrity ▪ Her boyfriend's a certified weirdo.
▪ a certified instructor ▪ You must be certified in order to practice medicine. ▪ The carpentry work must be done by someone who is certified for the job. ▪ nationally certified [=(Brit) certificated] teachers ▪ a board-certified doctor [=a doctor whose qualifications have been approved by an official group]
▪ The food/restaurant is certified kosher. ▪ certified organic vegetables
b informal : real or genuine
▪ a certified celebrity ▪ Her boyfriend's a certified weirdo.
