テーマ, 主題
the subject of a talk, a piece of writing, a person's thoughts, or an exhibition; a topic
テーマ, 旋律
a melody that is repeated and developed in a piece of music
テーマ, スタイル
a set of colors, styles, or images used in a particular design or context
テーマにする, 主題とする
to give a particular theme to (a place, event, or piece of work)