The term "4001st" typically refers to the ordinal number that comes after 4000. It is used to denote the position of an item in a sequence, such as in a list or ranking. For example, if a person is ranked 4001st in a competition, it means there are 4000 individuals ranked above them. In various contexts, such as sports or academic achievements, being 4001st can indicate a specific level of performance or accomplishment. It can also be used in statistical data, where it might represent a particular entry in a dataset, such as the 4001st entry in a list of participants or results.