This is the 244th most frequent Icelandic word.
bókun
"Booking" or "reservation."
Here, 'bókun' is used to mean a 'reservation' or 'booking' in the context of planning.
Ég gerði bókun á veitingastaðinn.
I made a reservation at the restaurant.
In this case, 'bókun' refers to the 'record' or 'protocol' kept of a meeting.
Hin bókun fundarins var samþykkt með einróma atkvæðum.
The meeting's record was approved unanimously.
Here 'bókun' is used in a general sense, referring to the act of making arrangements to organize an event.