Feline sound is a term used to describe the various vocalizations cats make. The crossword solutions for this term are PURR (4 letters), meow (4 letters), MEW (3 letters), HISS (4 letters), and miaou (5 letters). Purring is a low, continuous sound cats make when they are content or happy. Meow is a sound cats make to express a variety of emotions, from hunger to anger. MEW is a high-pitched sound cats make when they are seeking attention. Hissing is a sound cats make when they feel threatened or scared. Miaou is a French word for meow, and is used to describe a more drawn-out version of the sound.