The term 'HOG SOUNDS' can be solved by two crossword solutions: 'OINKS' (5 letters) and 'GRUNTS' (6 letters). Pigs, commonly referred to as hogs, are known for making two distinct sounds: oinks and GRUNTS. Oinks are short, high-pitched noises that pigs make when they are content or excited. GRUNTS are longer, lower-pitched noises that pigs make when they are communicating with other pigs or expressing displeasure.