Speech disorder. Main article: Speech and language pathology. Speech disorders or speech impediments are a type of communication disorder where 'normal' speech is disrupted. This can mean stuttering, lisps, etc. Someone who is unable to speak due to a speech disorder is considered mute.
Commercial Real Estate Classifications. Commercial real estate is categorized into different classes. Office space, for example, is divided into one of three classes: class A, class B or class C. Class A represents the best buildings in terms of aesthetics, age, quality of infrastructure and location.
Updated June 29, 2017. Definition: Commercial real estate is any property owned to produce income. There is about $6 trillion worth of commercial real estate in the United States. Here are the five largest categories of commercial real estate. Retail includes indoor shopping malls, outdoor strip malls, and big box retailers.