THEMATIZE is validvalid

to convert into a theme [v THEMATIZED, THEMATIZES, THEMATIZING]

116,665 of 196,601 in NWL2023·also valid in CSW24

to place (a word or phrase) at the start of a sentence in order to focus attention on it, also THEMATISE [v THEMATIZED, THEMATIZING, THEMATIZES]