Accessibility- is ensuring participation and representation of everyone along the continuum of human ability and experience. Accessibility encompasses the broader meanings of compliance and refers to how organizations make space for the characteristics that each person brings (adapted from American Alliance of Museums).
Ableism- discrimination or social prejudice against people with disabilities based on the belief that typical abilities are superior.(Harvard Business Review)
Privilege- Unearned social power accorded by the formal and informal institutions of society to ALL members of a dominant group (e.g. white privilege, male privilege, etc.). Privilege is usually invisible to those who have it because we're taught not to see it, but nevertheless it puts them at an advantage over those who do not have it. (Racial Equity Tools)