Preloading means preparing something in advance to be used later. Some synonyms for preloading include booting, initializing, priming, charging, and stocking. Booting refers to the process of starting up a computer system or electronic device. Initializing means setting up or configuring something for immediate use. Priming involves preparing something for a specific purpose. Charging is a term used to describe the process of supplying power or energy to a device or system. Stocking refers to the practice of ensuring that enough inventory or supplies are available for immediate use. These synonyms are often used interchangeably to describe the process of preparing something ahead of time to be ready for use when needed.