Translation: president [noun, m]

The feminine version of the noun is predsednica. Predsednik Republike Slovenije is elected every five years by voters older than 18 years. A person can be only elected twice. A president has a bunch of duties, but the most important decisions are coordinated with the parliament.

Examples:

Predsednik je odšel na uradni obisk v Združene države Amerike (ZDA).
(The president went on an official visit to United states of America (USA).)

Jan je postal predsednik šahovskega društva.
(Jan became a president of a chess society.)

Borut Pahor je drugič izvoljen za predsednika države.
(Borut Pahor is elected as the president of the country for the second time.)

Related:

predsedovati – to chair, preside [verb]
voliti – to vote
izvoliti – to elect