The word MOC or My Own Creation is commonly used in the Lego community to describe a creation made by an individual without instructions. Some synonyms for MOC include DIY (Do It Yourself), custom build, original design, and personal creation. Other terms that may be used to describe a MOC can include homebrew, unique, handcrafted, or innovative creation. These synonyms all describe the same idea of building something using your own creativity and design skills. Using these alternate terms can be helpful when searching for inspiration or sharing your own creations within the Lego community.