Cusp/kʌsp/ Definition 1 of 5Pro Tip 1/3Imminent Transition Indicates an important change is about to happen, often in a positive light. She's on the cusp of choosing her career path. Pro Tip 2/3Precise Moment Used for the exact moment when change begins, emphasizing a specific time or event. The innovation put us on the cusp of a new era. Pro Tip 3/3Metaphorical Usage Often used metaphorically to describe intangible or abstract transitions. The nation is on the cusp of significant social change.