ac·me 
/ˈækmi/ noun
/ˈækmi/ noun [singular] : the highest point of something
▪ He was struck down by illness at the acme [=height] of his fame. [=when he was most famous] ▪ His fame was at its acme.
▪ He was struck down by illness at the acme [=height] of his fame. [=when he was most famous] ▪ His fame was at its acme.
