An internship is an opportunity offered by an employer to potential employees, called interns, to work at a firm for a fixed, limited period of time. Interns are usually undergraduates or students, and most internships last for any length of time between one week and 12 months.
Internships program (also called “placements”, “work placements” or “industrial placements”) may be part-time or full-time. They are usually part-time if offered during a university semester and full-time if offered during the summer, winter or Easter holidays, when they typically last 4-12 weeks. Placements are usually full-time, and take place irrespective of term time or holiday time