nouns
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"
a unifying idea that is a recurrent element in literary or artistic work
"it was the usual `boy gets girl' theme"
(music) melodic subject of a musical composition
"the theme is announced in the first measures"; "the accompanist picked up the idea and elaborated it"
an essay (especially one written as an assignment)
"he got an A on his composition"
(linguistics) the form of a word after all affixes are removed
"thematic vowels are part of the stem"