A stereotype is a widely held but oversimplified and generalized belief or idea about a particular group of people or things.
Prejudice: Prejudice refers to preconceived opinions or attitudes towards a person or group based on stereotypes.
Discrimination: Discrimination is the unfair treatment of individuals based on their membership in a certain group, often fueled by stereotypes.
Bias: Bias is an inclination or prejudice for or against someone or something that influences judgment and decision-making.