what is an application?
application. n. 1. the act of applying to a particular purpose or use. 2. relevance or value: the practical applications of space technology. 3. the act of asking for something: an application for leave.pplication. n. 1. the act of applying to a particular purpose or use. 2. relevance or value: the practical applications of space technology. 3. the act of asking for something: an application for leave.