The term Boggle Pieces can be summarized as DICE with four letters. Boggle is a word game in which players attempt to find words in a 4x4 grid of letters. The game pieces are typically 16 six-sided DICE, each with a different letter printed on each side. Players must find as many words as possible within the time limit, using only the letters on the DICE. The game has been popular since its introduction in the 1970s and continues to be a favorite among word game enthusiasts.