"Besprinkler" is a rarely used word in modern English. However, if one wishes to use a synonym for this word, they can use "sprinkler", "water sprinkler", "sprayer", "irrigation system", or "showerhead". Each of these words carries a similar meaning, which is to distribute water or liquid in a fine mist or spray over a certain area. Depending on the context in which one intends to use the word, one of these synonyms can be aptly chosen to convey the desired message effectively. Using synonyms helps to avoid repetition in writing and speech, making language more creative and dynamic.