re·gen·cy 
(rējən-sē)
(rējən-sē)n. pl. re·gen·cies
1. A person or group selected to govern in place of a monarch or other ruler who is absent, disabled, or still in minority.
2. The period during which a regent governs.
3. The office, area of jurisdiction, or government of regents or a regent.
adj.
1. Regency Of, relating to, or characteristic of the style prevalent in England during the regency (1811-1820) of George, Prince of Wales (later George IV).
2. Regency Of, relating to, or characteristic of the style prevalent in France during the regency (1715-1723) of Philippe, Duc d'Orléans (1674-1723).
3. Of or relating to a regency: regency policies and appointments that were later rescinded.
- third baseman
- third class
- third-class
- third degree
- third-degree burn
- third dimension
- third-dimensional
- third estate
- third eye
- third eyelid
- third force
- thirdhand
- third home
- third house
- thirdly
- third man
- third market
- Third Order
- third party
- third person
- third-person
- third quantum number
- third quarter moon
- third rail
- third-rate