This is the 165th most frequent Dutch word.
volgende
"Next."
Here, 'volgende' is used as an adjective to mean 'next', describing the noun 'keer' which means 'time'.
De volgende keer zal ik je bellen.
Next time, I will call you.
'Volgende' here functions as an adjective describing 'het', referring to the item to be considered next.
Het volgende op de lijst is het dessert.
The next item on the list is the dessert.
In this sentence, 'de volgende' acts as a noun phrase meaning 'the next person', formed by combining the article 'de' and the adjective 'volgende'.