Context.

To understand any technical concept you must first understand the context in which it is applied.  When I use the word “architecture” most people will immediately picture a building of some type.  I can focus that perception by providing context for the word “architecture”.  For example, by saying “Gothic architecture” I can evoke the image of a European cathedral or through the term “Roman architecture” I can give you images of stone columns and porticos.  By providing context for the word architecture I can make the meaning clearer to you.