LOST guessing game (Spoilers)

Here is some info about two important coming episodes:

Episode 9 will tell the backstory of Richard. This episode will feature Jacob explaining what the island is.

Episode 15 will tell the back story of Jacob and MIB. It will start with them as children around 23 AD.

Now to the guessing game. Jacob describes what the island is by using a four letter word that has no vowels other than the letter "o". What is your best guess as to what word he will use to explain the island?

Cork is a prominant guess right now.

Here is a link to the site where the above information comes from if you want to check it out: LINK