General Equivalency Diploma
noun [ C ] uk/ˌdʒen.ər.əl ɪˈkwɪv.əl.əns.i dɪˌpləʊ.mə/ us/ˌdʒen.ɚ.əl ɪˈkwɪv.əl.əns.i dɪˌploʊ.mə/
（美国为没有完成高中学业但是通过了政府组织的相应考试的人颁发的）普通同等学历证书
an official document in the US that is given to someone who did not complete high school (= school for students aged 15–18) but who has passed a government exam instead