Intangible. Stocks, patents, things / papers which merely represent other value are intangible, or things like know-how, goodwill. Things your can put your hands on (aside from land), are tangible, such as currency, shoe horns, fishing poles, eggs, or sweaters.
Note that is some estates contexts in some states your will can indentify a list of tangible personal property without changing the will. For example, antique chair to my "sister." Such lists usually cannot include currency, stocks, etc.
The Universal Commercial Code (UCC) is a good lookup, but note how the rules can be oddly defined.
We do not have a client/attorney relationship until you make an appointment, we discuss your case face to face, I accept a retainer, and we explictly agree to enter into representation.