Properly is a word that is commonly used in written and oral communication. It means doing something correctly or appropriately. There are many synonyms for the word "properly" that can be used to add variety to your writing. For example, "adequately," "accurately," "correctly," "effectively," and "appropriately" are all words that can replace "properly" in a sentence. Other synonyms include "satisfactorily," "suitably," "well," "successfully," and "flawlessly." Using these synonyms can help make your writing more interesting and prevent repetition. Additionally, using appropriate synonyms can help convey your meaning more precisely, making your writing more effective.