capstone

noun

cap·​stone ˈkap-ˌstōn 

1

: a coping stone : coping

2

: the high point : crowning achievement

the capstone of her career

Synonyms of capstone

• pinnacle
• culmination
• zenith
• top
• height
• peak
• apex

Examples of capstone in a Sentence

her election as the state's first woman governor was a capstone of a long political career

Recent Examples on the Web

Making good grades is often seen as the pinnacle of success, or capstone, for many Tennessee students. —Kenya Anderson, Nashville Tennessean, 10 Nov. 2025

The capstone is the Final Frontier farewell tour, which kicks off in February in Hershey, Pennsylvania, and wraps up at some point the following year. —Andy Greene, Rolling Stone, 7 Nov. 2025

The college senior is hoping to assist and possibly teach special needs students after graduation, and has focused her capstone project around the subject. —Preston Mizell, FOXNews.com, 16 Oct. 2025

Adapting to the journey Since moving to Ruskin, Sixta has also been teaching leadership courses, where students work in teams on a long-term capstone project to make a tangible difference in the school or local community. —Ilana Arougheti updated October 7, Kansas City Star, 7 Oct. 2025

Word History

Etymology

cap entry 1

First Known Use

1665, in the meaning defined at sense 1

Rhymes for capstone

• alone
• atone
• backbone
• bemoan
• bluestone
• breastbone
• brownstone
• cheekbone
• condone
• curbstone
• cyclone
• dethrone