(especially of a document) still in existence; surviving (尤指文件)尚存的;现存的 an extant letter. 还没弄丢失的信。
语源
mid 16th cent. (in the sense 'accessible, able to be publicly seen or reached'): from Latin exstant- 'being visible or prominent, existing', from the verb exstare, from ex- 'out' + stare 'to stand'