noun, masculine/tɛm/plural: thèmes
theme, topic; subject, theme; theme (what is generally being talked about, as opposed to rheme); stem of (usually) a noun or verb, to which inflectional endings are attached; translation from one's mother tongue into another language
“un parc à thèmes” — a theme park
Synonyms: sujet, radical
Learned borrowing from Latin thema, itself borrowed from Ancient Greek θέμα (théma).