special development area 
(also special area)
noun
(In the UK) a district for which special economic provision is made in legislation.
- saving bank
- saving box
- saving clause
- saving faith
- saving grace
- saving institution
- savingly
- savingness
- savings account
- savings and loan
- savings and loan association
- savings bank
- Savings Bond
- savings book
- savings box
- savings certificate
- saving scheme
- savings institution
- savings rate
- savings ratio
- savings scheme
- savin-leaved
- savin oil
- savin top
- savior