1. Cause to be firmly attached
   "secure the lock onto the door";
   - fasten, fix
    
2. Get by special effort
   "He secured extra cigarettes even though they were rationed";
   - procure
    
3. Make certain in the future
   "Preparation will secure success!";
   - guarantee, ensure, insure, assure
    
4. Assure payment of
   "The loan was secured by the house as collateral"
    
5. Fill or close tightly with or as if with a plug
   "secure the hole";
   - plug, stop up
    
6. Fasten or fix firmly in place, especially to prepare for bad weather or difficult conditions
   "The crew secured all loose items before the storm";
   - batten, batten down

1. Immune to attack; incapable of being tampered with
   "a secure telephone connection";
   - impregnable [rare], inviolable, strong, unassailable, unattackable
    
2. Free from danger or risk
   "made a secure place for himself in his field"; "secure from harm"; "his fortune was secure"
    
3. Free from fear or doubt; easy in mind
   "he was secure that nothing will be held against him";
   - unafraid, untroubled
    
4. Not likely to fail or give way
   "a secure hold on her wrist"; "the lock was secure"; "a secure foundation"
    
5. Financially safe
   "a secure investment";
   - dependable, good, safe

Derived forms: secured, securer, secures, securing, securest

See also: assured, fail-safe, firm, fixed, invulnerable, protected, safe, sound, steady, sure, tight

Type of: attach, beef up [informal], close, fill up, fortify, guarantee, obtain, strengthen, verify, vouch

Antonym: insecure

Encyclopedia: Secure, Contain, Protect