This is the 3968th most frequent Dutch word.
zakte
"Zakte" is the past tense of "zakken," meaning "sank," "dropped," or "failed" (depending on context).
In this sentence, 'zakte' refers to a decrease or drop in temperature, indicating a change in status or level.
De temperatuur zakte snel toen de zon onderging.
The temperature dropped quickly when the sun set.
Here 'zakte' describes a physical action of collapsing, demonstrating an involuntary descent due to fatigue.
Hij zakte in elkaar van vermoeidheid na het lange werken.
He collapsed from exhaustion after the long work.
In this context, 'zakte' represents a decline in academic performance, shown by the lowering of a grade.