noun
ADJECTIVE
▪ critical , historic , important , key , major , significant
▪ grim
▪
another grim ~ in the war
▪ personal
▪ career , development
VERB + MILESTONE
▪ achieve , hit , meet , pass , reach
▪
The company passed the £6 million ~ this year.
▪ celebrate , mark
▪ be , represent
▪
It represents a major medical ~.
PREPOSITION
▪ ~ in
▪
The movie proved to be a ~ in the history of cinema.
▪ ~ for
▪
a ~ for Chinese technology