States between Transparent, Translucent and Opaque

Solution 1:

Translucency and opacity are usually considered antonyms of practically opposing values. Here is a description as applied to HTML. http://www.dev-hq.net/html-css/20--opacity-transparency

Both are usually given in percent thus fully transparent is 100% translucent or 0% opacity Conversely fully opaque is 100% opacity and 0% translucency.

The scale is sometimes reduced to points such that equal opacity and translucency would be a value of 0.5 each.

I have not seen a scale of 7 points, however I think there was one ranking a number of words, for example inks are graded as :-

Transparent
Semi-transparent
Semi-opaque
and Opaque

for a better description of the relativity of these terms see https://en.wikipedia.org/wiki/Transparency_and_translucency

Solution 2:

The degree of light is not what differentiates the connotation of those words.The flavor of transparent is that an image behind a transparent item can be identified. Translucent implies that light is transmitted but that information is not clearly transmitted. A dark, clear, glass is transparent, a cloudy diffusing glass that might transmit more total light is translucent.