The word "shutter" is commonly used to refer to a movable cover that protects windows or doors. However, there are several synonyms for this versatile word that can be employed depending on the context. Some of the most commonly used synonyms for "shutter" include "blind", "screen", "curtain", "jalousie", "roller", and "louver". For example, instead of saying "I closed the shutters to block out the sun", you could say "I pulled down the blinds to get some shade". Similarly, instead of using the word "shutter" repeatedly in a description, you could use any of the above synonyms to create some variety in your writing.