WARBLED is a term used to describe a type of singing or vocalizing. PIPED is a five-letter word meaning to play a musical pipe or flute. TRILLED is a seven-letter word meaning to sing or play with a quavering or vibratory sound. SUNG is a four-letter word meaning to make melodious vocal sounds. SANG is a four-letter word meaning to utter words or sounds in musical tones. CAROLED is a seven-letter word meaning to sing joyfully. YODELED is a seven-letter word meaning to sing by suddenly changing from a natural voice to a falsetto and back again. All of these words are related to the term WARBLED, which is used to describe a type of singing or vocalizing.