There are many synonyms for the word "protect" that can help you expand your vocabulary and communicate more effectively. Some common alternatives include "guard," "defend," "shield," "preserve," "watch over," "keep safe," "secure," "cover," "safeguard," and "insulate." Each of these words carries a slightly different connotation and can be used in different contexts depending on the situation. For example, "defend" might be used in a military or sports context, while "preserve" might be used to describe efforts to protect historic landmarks or natural resources. By incorporating a variety of synonyms into your writing or speaking, you can convey a more nuanced understanding of the concept of protection.