Cachinnation. Guffaw. Cackle. Chortle. Bray. Titter. Howl. Snort. Hee-haw. These are just some of the words I found when I searched on-line for types of laughs. My favorite was “cachinnation” mostly because I had never heard of it before. It means “loud convulsive laughter.” I searched for these words because I know from my own experience that laughter can signify all sorts of things: pleasure, knowing, humor, bitterness, pain, and even despair.