This is the 2074th most frequent Arabic word.
بالمناسبة
By the way / Incidentally.
The phrase 'بالمناسبة' is used here to introduce a new topic in the conversation.
بالمناسبة، هل سمعت عن الحفلة المقامة غدًا؟
By the way, have you heard about the party happening tomorrow?
Here, 'بالمناسبة' provides an aside or a comment related to the main statement.
إنه أمر رائع بالمناسبة أن تتعلم لغة جديدة.
It's a wonderful thing, by the way, to learn a new language.
In this sentence, 'بالمناسبة' serves to connect directly related topics in the discussion.