quarter hour
/ˈkwɔːrtər ˌaʊər/
noun
- A period of 15 minutes.
- She set a timer for a quarter-hour to remind herself to take a break.
- The bus arrives every quarter-hour during rush hour.
- I'll meet you in a quarter-hour, right after my meeting ends.
- A point in time that is 15 minutes before or after an hour (e.g., quarter past or quarter to).
- He always checks his watch at the quarter-hour to stay on schedule.
- The train departs at the quarter-hour, so don't be late.
- The clock struck the quarter-hour, and the class bell rang.