The terms ‘functionality’ and ‘functionalism’ are used in the aesthetics of architecture as if they were synonyms but they are not. Functionality means being functional in respect of utility, symbolism, prestige, politics, religion, economics, and in last years also ecology. Functionalism is a belief that the creed ‘form follows function’ is really respected and implemented, not only declared, which results in an object being functional and beautiful. As such a belief is misleading and leads to a semantic confusion, it is better to abandon using the term ‘functionalism’ altogether.