This is the 607th most frequent Dutch word.
data
Information or facts, often in digital form, used for analysis or reference.
Here, 'data' is used to refer to collected research information.
De data van het onderzoek is zeer belangrijk.
The data from the research is very important.
In this sentence, 'data' is used in its plural form to mean 'dates', indicating potentially multiple days.
De afspraak staat gepland op een data in januari.
The appointment is scheduled for a date in January.
It refers to information managed in IT systems.