1. uncountable noun
High noon means [literary]
the same as noon.
2. uncountable noun
Journalists sometimes use high noon to refer to a crisis or event which is likely to decide finally what is going to
happen in a conflict or situation.
It looks like high noon for the nation's movie theaters, now we are in the age of
the home video.
COBUILD Advanced English Dictionary. Copyright © HarperCollins Publishers