You know what it looks like… but what is it called?
TAKE THE QUIZ“the Subject”
The following 3 entries include the term the Subject.
change the subject
idiom: to start a new topic of conversation
drop the subject
idiom: to stop talking about a topic
get on/onto the subject of
idiom: to start talking about
Love words? Need even more definitions?
Merriam-Webster unabridged