Let opposite of term A be Ā. Ie. Ā is most distant term from A in its kind (species?). White and black, good and bad, friend and enemy... Then, on condition there is distribution of terms in some dimension, there is square of opposition of terms:
A opposite Ā
com ment
ple
com ment
-Ā subopposite -A
A | -A
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-Ā | Ā
It is not Greimas' semiotic square, which deals with oppositions of signs.
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