What is interchangeably?

Interchangeably means being able to replace or exchange one thing with another thing, without making any significant difference or change in the overall meaning or function. When two or more things are referred to as interchangeable, it means that they are essentially identical and can be used or applied in the same way. For example, the words "car" and "automobile" can be used interchangeably to refer to the same thing. In some cases, interchangeable items can be used as a backup or alternative to another item, in case the original is not available or suitable for the purpose required.