To bode means to be a sign of what's coming, especially something good or bad in the future. When dark clouds bode rain, they signal a storm is approaching. When your teacher says “this doesn't bode well for your grade,” she means your current work suggests trouble ahead.

The word appears most often in two phrases: “bode well” (suggests something good) and “bode ill” (suggests something bad). If your team wins its first three games easily, that bodes well for the rest of the season. If you forget your homework three days in a row, that bodes ill for your report card.

Bode is about reading signs and predicting outcomes. When you see your best friend walking toward you with slumped shoulders and a frown, her body language bodes a difficult conversation. The word suggests you're noticing clues that point toward what's likely to happen next, like a detective piecing together evidence.

Notice that bode itself doesn't cause anything. The dark clouds don't create the rain; they just signal it's coming. Similarly, your friend's expression doesn't cause the bad news, but it warns you to prepare for it.