securˈitize or securˈitise transitive verb

To make (debts) into securities

secūrˈity noun

1. The state, feeling, or means of being secure
2. Over-confidence, carelessness (archaic)
3. Protection from the possibility of future financial difficulty
4. Protection from espionage, theft, attack, etc
5. Staff providing such protection, etc
6. Certainty
7. A pledge
8. A guarantee, a surety
9. A right conferred on a creditor to make him or her sure of recovering a debt
10. (usu in pl) a bond or certificate in evidence of debt or property

Providing security

secure unit noun

A government-run institution for the confinement of difficult or mentally disordered persons, juvenile offenders, etc

security blanket noun

1. A blanket, piece of material, etc, that a child comes to depend upon for a sense of comfort and security
2. Something that (irrationally) makes one feel secure or happy (figurative)
3. An official set of measures, a policy, etc, applied to conceal a matter of (often national) security

Security Council noun

A body of the United Nations consisting of five permanent members (China, France, Russia, UK, USA, each with the right of veto) and ten elected two-yearly members, charged with the maintenance of international peace and security

security guard noun

A person whose job is to protect a building, person, etc, or to deliver or collect large amounts of money

security risk noun

A person considered from his or her political affiliations or leanings to be likely to divulge (esp state) secrets