The phrase "a special depth" is correct and usable in written English.
It can be used to describe a unique or significant level of understanding, emotion, or quality in a particular context.
Example: "The artist's work has a special depth that resonates with viewers on multiple levels."
Alternatives: "a profound depth" or "a unique depth".
Clift's own serious problems (drink, drugs, insecurity, a disfiguring driving accident) helped give a special depth to his performance.
The Booksmith in San Francisco, a general-interest bookshop with a special depth in countercultural and music fare -- befitting its Haight location -- has made events a cornerstone of its business.
I notice he doesn't mention my home country, Scotland, which has a special depth of feeling for him.
Matterport is similar in that it creates VR renderings of the insides of properties, but it also allows anyone to actually create the 3D models using a special depth-sensing camera and share them over the Internet.
The drill bit was modified with a special depth-regulating device and the tip was flattened while still having good cutting characteristics.
It does not involve any special depth of knowledge.
It is difficult to explain what makes any great work great, and particularly difficult with movies, and maybe more so with "Citizen Kane" than with other great movies, because it isn't a work of special depth or a work of subtle beauty.
Chammas has received two of the Association's highest volunteer awards: in 2004, the Harold E. Lobdell 1917 Distinguished Service Award, which honors alumni relations service that is of special depth over a sustained period, and in 2008, the George B. Morgan 1920 Award, which recognizes sustained excellence supporting prospective students through Educational Council activity.
As the poet-philosopher Bachelard puts it, "It is a good thing, even salutary, for a child to have periods of boredom, for him to learn the dialectics of exaggerated play and causeless, pure boredom.....What special depth there is in a child's daydream!" photo by David Fuhrer.
I also find (and have heard this from a lot of grown-up onlies) that there is a special, intangible depth to the relationship between an a single child and her parents.
Either use the tread pattern test, or resort to using a special tread depth indicator or gauge tool to measure your tire's tread.
