The word "gear" is commonly used to refer to personal belongings, equipment, and tools. It is often used in the context of outdoor activities or hobbies such as camping, hiking, or sports, where individuals need to bring specific items or equipment with them. In this context, "gear" can include items such as tents, cooking equipment, tools, and personal belongings like clothing or gear bags. Therefore, the correct answer refers to personal belongings, equipment, and tools, which aligns with the given options.