cuspKK [ˋkʌsp] /ˈkʌsp/名詞1臨界點、轉捩點、邊緣常用於 on the cusp ofThe company is on the cusp of a major breakthrough.這家公司正處於重大突破的臨界點。2尖端、尖角The leaves narrow to a sharp cusp at the tip.這些葉子在末端收窄成一個尖端。3齒尖、瓣尖解剖The dentist repaired a chipped cusp on my molar.牙醫修補了我臼齒上缺損的齒尖。4星座交界占星She was born on the cusp between Leo and Virgo.她出生在獅子座與處女座的交界上。