The word 'violoncellist' refers to a musician who plays the cello. However, there are several synonyms for the term that one can use to add some variety to their writing or conversation. Some alternate terms that can be used to describe a cello player include 'cellist', 'celloist', 'violoncellist', 'violincellist', 'violoncello player', 'violoncelloist', 'violoncello performer', or simply 'cello performer'. Using a different term while referring to a cello player can add interest to your conversation or writing, and make it sound more creative. There are many synonyms to choose from, so it's fun to experiment with them and see which ones work best for you.