Stridulate is a word that is often used to describe the sound of insects or animals making noise by rubbing together parts of their bodies. However, there are many other synonyms that can be used to describe this sound. For example, chirp, buzz, hum, trill, and whir are all great words that can be used to describe the sound of stridulation. Additionally, some less common synonyms for stridulate include creak, grate, rasp, and scrabble. Overall, there are many different words that can be used to describe the sound made by animals and insects as they rub together, and each one has its own unique connotation and tone.