"Nephology" is the term used for the study of clouds. There are several synonyms for the word, including "cloudology," "cloud physics," and "cloud morphology." Another possible synonym is "cloud classification," which refers to the categorization of clouds based on their appearance and altitude. Cloud watchers who enjoy identifying different types of clouds may also use the term "cloud spotting" to describe their hobby. In addition to these synonyms, there are many related terms in the field of meteorology, such as "atmospheric science" and "weather forecasting," which are also relevant to the study of clouds.