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Words that start with BI and contain S are one thing. But what if you need the word to be exactly 12 characters long too? Don’t worry! Specific word lists exactly like that are only a few quick keystrokes and mouse clicks (or finger taps) away on WordFinder. But, you already know that, because you are looking precisely at a list of 12 letter words starting with BI and including S. These words could be your golden ticket to a super high-scoring play in your next Scrabble® game.