- [countable] (specialist)
a pointed end where two curves meet （两曲线相交的）尖点，会切点，交点 the cusp of a leaf 叶尖
- [singular]
the time of change between two different states （黄道十二宫的）两宫会切的时辰 - on the cusp of something
two girls on the cusp of adulthood 两个即将成年的女孩 - on the cusp between A and B
He was on the cusp between small acting roles and moderate fame. 他这个配角演员现在已是小荷初露尖尖角。
- on the cusp of something
- [singular]
the time when one sign of the zodiac ends and the next begins （黄道十二宫的）两宫会切的时辰
Word Originlate 16th cent. (in sense (2)): from Latin cuspis ‘point or apex’.