drop the topic
To stop talking about the topic at hand.
ADJ
chosen, selected
broad, general, large, wide
The teacher introduced a wide topic about climate change before focusing on renewable energy.
diverse, wide-ranging
The conference brought together experts who discussed a wide-ranging topic including climate change, technology, and education.
narrow | central, dominant, important, key, main, major, principal | complex, difficult | conversational, essay, lecture, research
controversial, sensitive
Religion and politics are often considered sensitive topics at family dinners.
historical, philosophical, scientific, social, etc.
VERB + TOPIC
consider, cover, discuss, explore, deal with, focus on, look at, speak on, write on
The panel will discuss several important topics during tomorrow's conference.
TOPIC + NOUN
area, heading
work
The students completed an interesting topic work project about animals last month.
PREP
on a/the ~
The professor gave an interesting lecture on the topic of climate change last week.
PHRASES
a choice of topic
His choice of topic for the presentation surprised everyone in the meeting room.
a range/variety of topics, a topic of conversation/discussion
The book covers a wide variety of topics that interest teenagers today.