'Opaque' means that light cannot pass through. A mirror or a black body can be referred as opaque objects. But colliqualy the term 'Opaque' is used often as a synonym for 'Opacity'. So 'opaque' can be called a measure of transparency/opacity
Aluminum foil is opaque.
Opaque
more opaque [comparative] most opaque [superlative]
"opaque"
Yes, a carpet is opaque.
Opaque
Opaque
"opaque"
paper is opaque
it is because opaque
There are many objects that no light can pass through, although of course, it depends on what type of light you're talking about. The name of the type of object that visible light cannot pass through is called opaque.
I can put the word opaque into a sentence. Alternatively, The wall is opaque.