Definitions
1.AdjectiveNeither reflecting nor emitting light.
2.AdjectiveAllowing little light to pass through, not translucent or transparent.
3.AdjectiveUnclear, unintelligible, hard to get or explain the meaning of.
4.AdjectiveObtuse, stupid.
5.AdjectiveDescribes a type for which higher-level callers have no knowledge of data values or their representations; all operations are carried out by the type's defined abstract operators.
6.NounAn area of darkness; a place or region with no light.
7.NounSomething which is opaque rather than translucent.
8.VerbTo make, render (more) opaque.