| the spread or transmission of something (as news or money) to a wider group or area | the study of the principles and practices of library administration |
| the dissemination of copies of periodicals (as newspapers or magazines) | |
| free movement or passage (as of cytoplasm within a cell or sap through a plant) | |
| movement through a circuit; especially the movement of blood through the heart and blood vessels | |
| number of copies of a newspaper or magazine that are sold | |
| (library science) the count of books that are loaned by a library over a specified period | |