Fyzicka osoba
Fyzicka osoba "natural person" is a person recognized under Czech law. A simple translation would be a "physical person", as opposed to a legal entity, such as a company.
Defined under the Czech Civil Code (§ 7 to 10)
When applying for a zivnsotensky list, you need to look for a fyzicka osoba zivnostensky list. This is for personal use, as opposed to a pravnicke osoba zivnostensky list which is for use with a registered company.