1. A period of six month.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• semestar,
• sumbster,
• semeser,
• semiester,
• semster,
• sememster,
• sememester,
• semseter,
• simister,
• sismester,
• seminster,
• semsester,
• seester,
• semesster,
• semmester,
• somester,
• simster,
• semesterly,
• semisters,
• sumester

• seamster,
• sensate,
• semestral,
• seamstress,
• semestrial.

The adjective form of the word "semester" is "semestral".

The plural of the "semester" can be the "semesters".

The singular of the "semester" can be the "semester".