Yes, bloc is a Scrabble word!
...and is worth 8 points in Scrabble, and 11 points in Words with Friends
bloc
Noun
1. A group of countries in special alliance
What Scrabble words can I make with the letters in bloc?
3 Letter Words
2 Letter Words
Noun
1. A group of countries in special alliance
3 Letter Words
2 Letter Words