This is the 1411th most frequent Dutch word.
zekere
"Zekere" means "certain" or "sure."
Here, 'zekere' is used to express an unspecified level or kind, implying a certain or specific type.
Ik heb een zekere bewondering voor haar werk.
I have a certain admiration for her work.
In this sentence, 'zekere' refers to someone not further described, a particular but unidentified person.
Een zekere meneer belde vanochtend voor jou.
A certain gentleman called for you this morning.
Here, 'zekere' denotes confidence or assurance, emphasizing the nature of her conviction.