A word for the meeting place of opposites [closed]

Solution 1:

Some days I'm less happy with www.dictionary.com than others. It calls "apposition" a noun, but then gives the following as the first definition.

https://www.dictionary.com/browse/apposition

1 the act of placing together or bringing into proximity; juxtaposition.

So, a noun is an act of placing. OK then. Anyway, how about apposition?