theming

noun

1. 1. a topic or subject, as of a lecture, sermon, essay, etc.
   2. a recurring, unifying subject or idea; motif, often one used decoratively
2. a short essay, esp. one written as an assignment in a school course
3. 1. a short melody used as the subject of a musical composition
   2. a musical phrase upon which variations are developed
4. ☆ theme song

transitive verb themed, theming