theme (

     n 1: the subject matter of a conversation or discussion; "he
          didn't want to discuss that subject"; "it was a very
          sensitive topic"; "his letters were always on the theme
          of love" [syn: subject, topic]
     2: a unifying idea that is a recurrent element in a literary or
        artistic work; "it was the usual `boy gets girl' theme"
        [syn: motif]
     3: melodic subject of a musical composition; "the theme is
        announced in the first measures"; "the accompanist picked
        up the idea and elaborated it" [syn: melodic theme, {musical
        theme}, idea]
     4: an essay (especially one written as an assignment); "he got
        an A on his composition" [syn: composition, paper, report]
     5: (linguistics) the form of a word after all affixes are
        removed; "thematic vowels are part of the stem" [syn: root,
         root word, base, stem, radical]