Abstractly, an object is a construction of our mind consistent with the information provided by our senses, using Occam's razor.

In common usage an object is the material inside the boundary of an object, in three-dimensional space. The boundary of an object is a contiguous surface which may be used to determine what is inside, and what is outside an object. An object is a single piece of material, whose extent is determined by a description based on the properties of the material. An imaginary