This is the 6033rd most frequent Turkish word.
yanınızda
"Beside you" or "with you."
The word 'yanınızda' here means 'by your side' or 'near you', indicating physical proximity.
Yanınızda kalabilirim, isterseniz.
I can stay by your side, if you want.
In this sentence, 'yanınızda' implies possession or carrying something with oneself—'with you'.
Kitabınızı yanınızda getirdiniz mi?
Did you bring your book with you?
Here, 'yanınızda' conveys the sense of support or presence, metaphorically meaning 'by your side' in emotional or moral terms.