The four terms are usually used with regard to tests such as Covid or Polio tests, but in this context, we might take the "prediction" as the output of a test.

True positive means that the test result correctly indicated a positive result, for example "has Polio". In a test setting this would be verified by means other than the original test, perhaps sophisticated DNA sequencing (I don't know).

True negative means that the test result correctly indicated a negative result. The test said "no Polio" and no Polio could be found by any means.

False positive means the test indicated a positive result but it was wrong. For example test said "has Polio" and no Polio could be found.

False negative means the test indicated negative result but it was wrong. The test might say "has no Polio" but other more expensive tests show the presence of Polio.