Giggles are a contagious expression of amusement that comes from the mouth. There are many synonyms for giggles that can be used to describe this expression of joy. Some common synonyms for giggles are chortles, chuckles, snickers, and cackles. Chortles usually refer to a hearty, deep, and sustained kind of laughter. Chuckles are soft, quiet, and subtle laughter sounds, often expressed through a slight smile. Snickers refer to quiet and brief laughter that happens almost subconsciously. Cackles are high-pitched, loud, and raucous laughter sounds. Whatever word you choose, giggles are one of life's simplest joys that can brighten up anyone's day.