The term REASON FOR AN 'R' can refer to the Motion Picture Association of America's rating system, which assigns films a rating based on their content. The two crossword solutions, VIOLENCE and GORE, are both factors that can contribute to a film receiving an 'R' rating. VIOLENCE is defined as physical force exerted for the purpose of violating, damaging, or abusing, while GORE is defined as the depiction of bloody or grisly scenes, often associated with horror films.