This is the 211th most frequent Danish word.
ene
"Ene" in Danish means "alone" or "sole."
Here, 'ene' modifies 'projekt' and implies one specific project among others.
Jeg foretrækker at lave det ene projekt først.
I prefer to do the one project first.
In this sentence, 'ene' is a plural definite article suffix, indicating that 'børnene' means 'the children'.
Børnene leger ude i haven.
The children are playing outside in the garden.
In this case, 'ene' is part of 'enge,' plural form of 'eng,' meaning meadows, without direct relation to definiteness.