Tintinnabula refers to small bells or a set of bells that can produce a sweet melody. If you are looking for synonyms for this term, you can use the word carillon. Other options include chimes, peal, clangor, jangle, or toll. Each of these words describes a group of bells that can make sweet, harmonious sounds. You can use these terms interchangeably, depending on the context and the level of formality. Tintinnabula is a beautiful word that describes a lovely sound produced by bells, but the synonyms mentioned above can be just as useful in describing lovely melodic sounds.