exists and is an alternate of . It refers to the difficulty in convincing people of something using only words compared to the use of action. Getting someone to believe this [thing] can do [whatever] is a lot easier when the thing actually does do whatever it is claimed to do.
Definition of margin for English Language Learners. : 1  the part of a page that is above, below, or to the side of the printed part. : 2  the place where something (such as a piece of land) stops : the edge of something. : 3  an extra amount of something (such as time or space) that can be used if it is needed.
Gross margin is gross income divided by net sales, expressed as a percentage. It reveals how much a company earns taking into consideration the costs that it incurs for producing its products and/or services.