Coins can be used to buy two kinds of hints, accessible via buttons directly to the left and right of the picture on the gameplay screen.
Hints can be used to fill in the next letter in the currently highlighted clue, or to remove the unused letters from the selection area (making the current clue easier to guess).
Hints can be used to fill in the next letter in the currently highlighted clue, or to remove the unused letters from the selection area (making the current clue easier to guess).