[djuːˈalɪti], (Noun)

Definitions:
- the quality or condition of being dual
(e.g: this duality of purpose was discernible in the appointments)

- an instance of opposition or contrast between two concepts or two aspects of something; a dualism
(e.g: his photographs capitalize on the dualities of light and dark, stillness and movement)


Phrases:

Origin:
late Middle English: from late Latin dualitas, from dualis (see dual)