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.
By Kimberly Amadeo. 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. ndustrial property is used to manufacture, distribute or warehouse a product. It's not always considered commercial, especially in land use plans and in zoning. There are 13 billion square feet of industrial property worth around $240 billion. Other commercial real estate categories are much smaller.