2.Definition: free from danger or risk
"Secure from harm", "His fortune was secure", "Made a secure place for himself in his field"
3.Definition: free from fear or doubt; easy in mind
"He was secure that nothing will be held against him"
4.Definition: immune to attack; incapable of being tampered with
"A secure telephone connection"
5.Definition: not likely to fail or give way
"The lock was secure", "A secure foundation", "A secure hold on her wrist"