I first found "god" and "heaven" were among 1000 closest words, but didn't get what was going until I put "sake" (for god's sake). I realized this is a very common word and possibly also in common idioms and I eventually arrived at "everything", which was probably within top 10 I think. But it took me another 30+ trys to finally figure out that it was just a pronoun.
It's the same word for everyone once a day. So you just spoiled it for anyone who hadn't gotten it. Just FYI in case you want to edit.
Wow, I thought I had something going, and was even within the top 10 similar words, but in my opinion they are not very closely related at all.