Semester
A semester or term was a time period during the study at a school.

Tom Paris studied two semesters biochemistry at Starfleet Academy. () During his second semester he chose the Starfleet base in Marseille and spent most of his time at Chez Sandríne. ()

The Academy Extension Course was a semester-long course at Starfleet Academy. ()

Chakotay dodged asteroids for a semester during his time at Starfleet Academy. ()

A semester of Interspecies Protocol was a necessity at Starfleet Academy. ()

Kathryn Janeway was the guest lecturer in Reginald Barclay's semester course about the Borg at Starfleet Academy. ()

In 2370, Beverly Crusher feared her son Wesley Crusher would wash out of Starfleet Academy next term if his grades did not improve. ()

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Education
Time measurements