This is the 956th most frequent Croatian word.
vikend
Weekend.
In this sentence, 'vikend' refers to a specific, recent weekend, showing its use to denote time.
Prošli vikend smo posjetili Plitvička jezera.
Last weekend we visited the Plitvice Lakes.
Here, 'vikendom' is used in the instrumental plural form to mean 'on weekends' in a habitual sense.
Obično se vikendom odmaram kod kuće.
I usually relax at home on weekends.
In this case, 'vikendu' is in the dative case, referring to a specific future weekend as the recipient of anticipation.