A topic is a subject. It's what you're discussing or what a newspaper article is about, the theme of a documentary, or the focus of your term paper.

Green energy, the Oscar nominees, what's on the lunch menu, boxers or briefs — these are all considered topics. If something is a "hot topic," then everybody is talking about it. If it's a "topic for discussion," then someone wants to have a serious conversation about it. If you're at a dinner party, you can talk about all kinds of topics with other guests. But to keep peace at the table, avoid bringing up controversial political or religious topics.

Definitions of topic

n the subject matter of a conversation or discussion

“it was a very sensitive topic
subject, theme
show 7 types...
hide 7 types...
bone of contention
the subject of a dispute
a subject mentioned earlier (preceding in time)
head, question
the subject matter at issue
the principal theme in a speech or literary work
a question raised for consideration or solution
matter of fact, question of fact
a disputed factual contention that is generally left for a jury to decide
matter of law, question of law
a disputed legal contention that is generally left for a judge to decide
Type of:
content, message, subject matter, substance
what a communication that is about something is about

n some situation or event that is thought about

“he kept drifting off the topic
issue, matter, subject
show 6 types...
hide 6 types...
a subject of study
blind spot
a subject about which you are ignorant or prejudiced and fail to exercise good judgment
the topic that a person, committee, or piece of research is expected to deal with or has authority to deal with
res adjudicata, res judicata
a matter already settled in court; cannot be raised again
gray area, grey area
an intermediate area; a topic that is not clearly one thing or the other
an area of knowledge or interest
Type of:
cognitive content, content, mental object
the sum or range of what has been perceived, discovered, or learned

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, can put you on the path to systematic vocabulary improvement.