期 (qī): period, phase; measure word for issues, semesters, etc.

This semester I chose three courses.

We agreed on the date for our next meeting.

The opportunity he had long anticipated finally came.

The deadline for this project is one month.

During the vacation, I plan to travel.

He hopes to be admitted to his ideal university.

This semester I have four courses.

The latest issue of the magazine has already been published.

Your passport expires next month.

I am really looking forward to this trip.

The company plans to complete this project in three phases.