Semester (noun)

1. A period of half a year, typically a school or college term.
2. A period of six months, typically used to describe a period of study.

Origin:

Mid 19th century: from german semester, from latin semestris "of six months".

Examples:

1. The semester begins in September.
2. She got a B+ for the semester.
3. The students are preparing for the end of semester exams.
4. He completed the coursework for the semester.
5. The semester system is divided into two terms.