GED
trademark uk/ˌdʒiː.iːˈdiː/ /ˌdʒiː.iːˈdiː/
（美国）高中同等学历证书（general equivalency diploma的缩写）
abbreviation for General Equivalency Diploma: 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