Four years, for a U.S. president

TERM

["Think about the duration a U.S. president holds office. What do we call this period?"]

In the U.S., a president serves a fixed period of time in office called a "term," which lasts four years. The clue plays on this well-known fact, using "four years" as a direct hint toward the word "term." There’s no hidden wordplay—it’s a straightforward definition where the answer is the standard political term for that duration.