既是 jìshì both... and Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: since All meanings 2 jìshì 2 both... and 1since 1 1 sentence for 既是 (jìshì — since) 既是你不舒服,就早点休息吧。 jìshì nǐ bù shūfu, jiù zǎodiǎn xiūxi ba. Since you are not feeling well, you should get some rest early. Source: Dong Chinese Dictionary