[kə(ʊ)ˈhɪərənt], (Adjective)

Definitions:
- (of an argument, theory, or policy) logical and consistent
(e.g: they failed to develop a coherent economic strategy)

- forming a unified whole
(e.g: the arts could be systematized into one coherent body of knowledge)

- (of waves) having a constant phase relationship


Phrases:

Origin:
mid 16th century (in the sense ‘logically related to’): from Latin cohaerent- ‘sticking together’, from the verb cohaerere (see cohere)