surety

noun

1. 1

   something clearly established

2. 2

   a guarantee that an obligation will be met

3. 3

   one who provides a warrant or guarantee to another

4. 4

   a prisoner who is held by one party to insure that another party will meet specified terms

5. 5

   property that your creditor can claim in case you default on your obligation

   bankers are reluctant to lend without good security