A loud, unpleasant confused noise that lasts for a long time. (Cambridge Dictionary)
A din is a very loud and unpleasant noise that lasts for some time. (Collins Dictionary)
A loud continued noise. (Merriam – Webster)
A situation or condition resembling a din. (Merriam – Webster)
A loud, unpleasant, and prolonged noise. (Oxford Dictionaries)
din something into. Make (someone) learn or remember an idea by constant repetition. (Oxford Dictionaries)
Make a loud, unpleasant, and prolonged noise. (Oxford Dictionaries)
Clutter and Din. Related words.
The ‘Daunting’ Din: Readers React to Noisy Restaurants.