Literal meaning (a pointed edge):
* The artist carefully traced the cusp of the vase with her brush, capturing its delicate curve.
* The ancient city wall was crumbling, its stones falling away from the cusp of the archway.
Figurative meaning (a point of transition or change):
* The company was on the cusp of a major breakthrough, with its new product about to hit the market.
* Standing on the cusp of adulthood, she felt a mix of excitement and trepidation about the future.
* The world is on the cusp of a technological revolution, with advancements in artificial intelligence happening at an unprecedented pace.
Other examples:
* The eclipse was at its cusp when the sky darkened completely.
* The young musician was on the cusp of stardom, with record labels vying for his signature.
* Her career was at a cusp, she could either take a risk and try something new or stay in her comfort zone.
The word "cusp" can be quite versatile and depending on the context, it can be used both literally and figuratively.