B1
a subject that you talk or write about
Dictionary examples:
The class picked 'Why do we have homework?' as their presentation topic. (0.0)
The science fair topic was 'Do plants get dizzy if you spin them?' (0.0)
The podcast's main topic was 'How to train your cat to do your homework'. (0.0)
Our discussion ranged over various topics, such as climate change and nuclear weapons. (78.2)