There are several synonyms for the word "bongs". Some of the commonly used synonyms include water pipes, bubblers, hookahs, chillums, and hand pipes. Water pipes are similar to bongs as they also use water to cool and filter the smoke. Bubblers are smaller than bongs but use water to filter the smoke and provide a smoother hit. Hookahs are traditional Middle Eastern smoking devices that also use water for filtration. Chillums and hand pipes are smaller devices that can be easily carried and used for smoking. Each synonym has its own unique features and purposes, providing smokers with a range of options to suit their preferences.