开

开 (kāi) means "to open; to start; to turn on; to boil; to write out (a prescription, check, invoice etc); to operate (a vehicle); carat (gold); abbr. for Kelvin, 開爾文|开尔文[Kai1 er3 wen2]; abbr. for 開本|开本[kai1 ben3], book format" in Chinese. The new HSK exam tests it at HSK 1.

开 is pronounced "kāi" in Mandarin Chinese. The tone number is 1.

开 is an HSK 1 word on the new HSK exam syllabus. It is HSK 1 on both the old and the new exam.

Common words with 开 include 公开 (public), 不可开交 (to be awfully (busy etc)), 丢开 (to cast or put aside), 伸开 (to stretch out), 倒开 (to reverse a vehicle).

开 has 4 strokes. Its radical is 廾. You can view the stroke order animation on our stroke order tool.