This is the 553rd most frequent Polish word.
przy
"Przy" in Polish means "near" or "at."
Here, 'przy' specifies an object's position relative to another object, indicating proximity or closeness.
Maria siedziała przy stole i czytała książkę.
Maria was sitting by the table reading a book.
In this context, 'przy' creates an idiomatic expression 'przy okazji,' which means 'by the way' or 'while at it.'
Przy okazji chciałbym porozmawiać o naszych planach na przyszłość.
By the way, I would like to talk about our future plans.
In this usage, 'przy' denotes the condition or circumstances under which an activity is performed.