This is the 741st most frequent Icelandic word.
The Icelandic word "facebook" refers to the social media platform Facebook.
The word 'Facebook' is used as the name of the social media platform, indicating the source or location of browsing.
Ég skoðaði myndirnar á Facebook í gærkvöldi.
I browsed the photos on Facebook last night.
Here, 'Facebook' refers to the messaging service on the platform, showing its functional use.
Hún sendi mér skilaboð á Facebook.
She sent me a message on Facebook.
This usage portrays 'Facebook' as a tool or medium for professional purposes.