This is the 2524th most frequent Turkish word.
nisanda
"In April."
In this sentence, 'nisanda' signifies 'in April' by combining 'nisan' (April) with the locative suffix '-da'.
Benim doğum günüm nisanda.
My birthday is in April.
Here, 'nisanda' again indicates 'in April', specifying the time of the planned travel.
Biz tatil için nisanda yola çıkacağız.
We will set off for vacation in April.
In this context, 'nisanda' is used to denote 'in April' as the time period during which the action occurs.