The term PARK BENCH PLANK is composed of four words, each with four letters. The first word, PARK, refers to an area of land set aside for public use, usually containing recreational facilities such as playgrounds, gardens, and paths. The second word, BENCH, is a long seat typically made of wood or stone, often found in parks and other public areas. The third word, PLANK, is a long, flat piece of timber used in construction, often used to form the floor or roof of a building. The fourth word, SLAT, is a thin, narrow strip of material, usually wood or metal, used to make up the frame of a bed or BENCH.