The term 'in great demand' can be described by two words: 'HOT' and 'redhot'. HOT is a 3-letter word that means having a high degree of heat or a high temperature. Redhot is a 6-letter word that means extremely HOT, burning, or passionate. This phrase is often used to describe something that is in high demand, such as a product, service, or idea. It implies that there is a great need for the item or concept and that it is highly sought after.