Discrimination simply means noticing the differences between things or people that are otherwise alike, and making decisions based on those differences. Discrimination is unfair treatment of one particular person or group of people.Discrimination means, at a very basic level, the act of separating out singular things or groups of things. It can be both an adjective and a verb. What is Discrimination? A simplified description of the legal definition of discrimination is when a person is treated disfavourably or when a person's dignity is violated. INSTRUCTIONS: Complete and submit this form within 180 calendar days of the last act that you believe was discriminatory or harassing. Application for all students in your household. We cannot approve an application that is not complete, so be sure to fill out all required information. The U.S. Navy—the most powerful navy in the world—lacks the most effective (and cost-effective) means of sea denial: expeditionary mining.