The word "cheap" refers to something that is of low cost or affordable, usually denoting a positive trait. On the other hand, "expensive" represents the opposite, indicating high cost or being costly. When something is expensive, it means that it requires more financial resources to obtain.
While "cheap" may be considered desirable when looking for a bargain or a good deal, "expensive" often conveys a sense of exclusivity or luxury. It implies that the item or service in question is of high quality or has added value. For example, designer clothing or luxury cars are commonly associated with being expensive.
In summary, "cheap" and "expensive" are two contrasting words that represent different ends of the spectrum when it comes to pricing.