This is the 2772nd most frequent German word.
mitbringen
"Mitbringen" means "to bring along" or "to bring with."
Here, 'mitbringen' is used to indicate that the speaker is bringing something (a cake) along to a specific event.
Ich werde einen Kuchen zur Feier mitbringen.
I will bring along a cake to the celebration.
In this sentence, 'mitbringen' is employed to request someone to bring a specific object (their guitar) with them.
Kannst du bitte deine Gitarre mitbringen?
Can you please bring along your guitar?
The word 'mitgebracht' is the past participle of 'mitbringen,' showing a completed action in the past involving bringing an item (a book).