Billions and Billions

This is a semi-themeless crossword by our very own Dob Olino and it's his debut puzzle, which was originally published over on Norah's Puzzles. A giant thank you to Norah for the test solve and all her help making this happen.

If you solve it, we'd appreciate any feedback you have, which you can leave by commenting below or emailing us here. Thanks for solving!

[Fullscreen solve] [.puz]