noun pl. capacities -·ties

1. the ability to contain, absorb, or receive and hold
2. 1. the amount of space that can be filled; room for holding; content or volume a tank with a capacity of 21 gallons
   2. the point at which no more can be contained filled to capacity
3. the power of receiving and holding knowledge, impressions, etc.; mental ability
4. the ability or qualifications (for, or to do, something); aptitude
5. maximum output or producing ability operating at capacity
6. the quality of being adapted (for something) or susceptible (of something); capability; potentiality
7. a condition of being qualified or authorized; position, function, status, etc. acting in the capacity of an advisor
8. Elec. capacitance
9. Law legal authority or competence

Etymology: ME & OFr capacite < L capacitas < capax: see capacious