Play NYT Connections Puzzle #309 Sun, Apr 7

Find groups of four related words Need hints?

Solve NYT Connections puzzle #309 - Group 16 words into 4 categories: DUMP, MESS, PIGPEN, STY, FIRM, SOLID, SOUND, STABLE, CARAMEL, PEANUTS, POPCORN, PRIZE, CHARLEY, CRAZY, DARK, GIFT.