A bubbler is a type of drinking fountain or water fountain that is designed to aerate the water as it flows out. The term 'bubbler' is derived from the word 'FOUNT, ' which is a five-letter word for a source of water. Another seven-letter word for an aerator is 'aerator, ' which is a device used to add oxygen to water. Three-letter word for ALE is 'ALE, ' which is a type of beer. A four-letter word for Etna is 'etna, ' which is a volcano located in Sicily, Italy. Lastly, a seven-letter word for JACUZZI is 'JACUZZI, ' which is a type of hot tub or whirlpool bath.