adjective

 

not fail not likely to fail or be lost

a secure investment/job

 

safe safe from danger

I don't feel that the house is secure.

 

confident confident about yourself and the situation that you are in

I need to feel secure in a relationship.

 

fixed firmly fastened and not likely to fall or break

Check that all windows and doors are secure.

 

verb

 

achieve to achieve something, after a lot of effort

to secure the release of hostages

 

fasten to fasten something firmly

He secured the bike to the gate.

 

make safe to make something safe