duality

Meaning

1. A classification into two subclasses or opposed parts.
2. The interchangeability of points and planes.
3. The mathematical equivalence of two seemingly different theoretical descriptions of a physical system.

Synonyms

dualism

dichotomy

double

doubleness

twoness

wave-particle duality

etc

pair

parallelism

polarity

reciprocity

dichotomisation

duplexity

double nature

two-fold nature

dualistic nature

bifurcation

dual property

binary

couple

👫

dichotomization

duplicity

emphasis

Pronounced as (IPA)

/d(j)uːˈælɪti/

Etymology

From Latin duālitās.
From dual + -ity.