Definition of topic noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
A topic is a particular subject that you discuss or write about. The weather is a constant topic of conversation in Britain. The main topic for discussion is political union. They
a subject of discussion: I've strayed off the topic. the subject of a speech or piece of writing: Introduce your topic with a clear sentence and then give examples to support it.
Definition of topic. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.