A subject or theme.

plural of thema

Relating to, or having a theme (“subject”) or a topic. / (music) Relating to a melodic subject.

A postage stamp that is part of a thematic collection.

In a thematic manner

The study of themes in literature, especially that of a geographically distributed culture.

Alternative spelling of thematise

The act of making an experience or emotion the topic of interaction. / The action of thematising.

Alternative spelling of thematisation

(linguistics) Convert a sentence or a part of it into a theme; modify a verb form by adding a thematic vowel. / Make thematic; organize in themes.