From Longman Dictionary of Contemporary Englishacmeac‧me /ˈækmi/ noun → the acme of something
Examples from the Corpus
acme• Capitalism specialises in producing useless things, but cigarettes really are the absolute acme of uselessness.• Silence of this quality is the acme of chatter.• As a raconteur and conversationalist, scattering indiscretions and gossip with gay abandon, he was the acme of unconventionality.• These rifts, and the increasingly separate position taken in Nottinghamshire, reached their acme in 1926.Origin acme (1500-1600) Greek akme “point, highest point” 