- Equalisandum(as used in theories of justice and fairness)
- The thing that a theory of fairness says should be distributed equally among people. It's Latin-based jargon for 'what should be made equal.'
- G.A. Cohen(the subject of the debate being referenced)
- A British philosopher (1941-2009) who wrote about fairness and justice, and was famous for challenging and improving upon other philosophers' ideas about equality.
- advantage(as an alternative measure of fairness)
- The actual wellbeing or benefit someone experiences—how well off they really are, considering their overall life quality.
- advantage-space(as Cohen's proposed solution)
- A framework that measures fairness based on people's overall wellbeing and life circumstances rather than just the resources they receive.
- brute luck(luck egalitarianism)
- Bad luck for which individuals are not responsible; luck egalitarians hold we owe assistance or compensation for it.
- currency-of-egalitarianism(as the framework Cohen developed)
- The basic unit or measure used to decide what counts as fair distribution—like choosing whether to measure fairness by money, happiness, or opportunities.
- resources(Resource egalitarianism)
- External material goods such as land and moveable property, and optionally personal traits or talents that function as instruments helping persons achieve their ends.
- responsible choices(as something fairness theory needs to account for)
- Decisions that people intentionally make for themselves and should be held accountable for.