When we talk about putting our signature on a document, the phrase 'put John Hancock on' is commonly used. But did you know that there are many other words or phrases that can be used in place of this phrase? Some of these synonyms include 'sign', 'autograph', 'ink', 'endorsed', 'initial', and 'stamp'. These synonyms can be used in different contexts depending on the type of document, formality, and style required. No matter what word or phrase you use, the main point is to put your individual and unique mark on a document, giving it value and meaning.