Is greatly acknowledged to signify at no monetary Charge. Its use is acceptable in promoting or speech and its use is comprehended to mean no financial Price. I'd only alter the use in a situation where by clarity and accuracy have been certainly vital, like inside of a contract. At https://docs.google.com/document/d/e/2PACX-1vR1aRmbt0UmT4gxVq4IXbfDVfh2KrMfGfIz30gs2kLcIKk8h4EVktV5g2U8cNCzOTBSOZHhUqlkGaRY/pub