What does "subtheme" mean?

A specific theme within a larger theme

What is a synonym for "subtheme"?

Common synonyms include: lesson topic.

noun

noun ·Rare ·Advanced level

Noun

1
A specific theme within a larger theme
"[…] grouped by subtheme, they are easier to skim than the 12 sites that fill the entire first page of Google’s search results."

"[…] grouped by subtheme, they are easier to skim than the 12 sites that fill the entire first page of Google’s search results."

From sub- + theme.