For those scrabble lovers out there, "Bitcoin" is one of the latest word added in their dictionary.

I don't know if we can consider this as getting closer to adoption, but we will take everything in stride.

. Maybe next year we will see a lot of altcoins being added as well.

I am sure this is just part of the growing awareness of the people on bitcoin. To be included in the new words of the scrabble game, the word has to be popular already and in use especially in online interactions. There is no doubt this can be helping for the mainstream adoption but of course there is no magic bean here. Certainly, the road to mainstream adoption is not just one event but rather a compounding effect of so many factors and even personalities contributing towards that goal. And of course, we are not there yet.
I agree that it signifies a certain accomplishment of Bitcoin and can boost awareness. Every neutral or positive mention of Bitcoin counts as a good thing! Commercials, TV series, movies, and now games - all of that is helping to make Bitcoin even more popular as well as make people who already use it smile. It's also good that the diversity of mentions widens the audience, since, for example, someone who learned the word 'Bitcoin' from iZombie might not be a Scrabble fan, but those fans have their own way to learn the same word. I don't think this will have any immediate effect, but these are small steps towards increased popularity and usage of Bitcoin.