Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Language: Latin
Origin: securus, from se 'without' + cura 'care'

secure

1 adjective
     
se‧cure1 S3
1

permanent/certain

a situation that is secure is one that you can depend on because it is not likely to change:
There are no secure jobs these days.
We want a secure future for our children.
United's position at the top of the league seems relatively secure.
2

place/building

locked or guarded so that people cannot get in or out, or steal anything:
The house isn't very secure - we need some new locks.
Keep your passport in a secure place.
secure accommodation British English (=a type of prison)
In the last year only three children under the age of 14 have had to be placed in secure accommodation.
3

safe from harm

safe from and protected against damage or attack:
Companies can offer secure credit card transactions over the internet.
secure from
These elephants are relatively secure from poachers.
4

confident

feeling confident about yourself and your abilities [≠ insecure]:
We want our children to be secure and feel good about themselves.
5

not worried

feeling confident and certain about a situation and not worried that it might change:
Workers no longer feel secure about the future.
It was enough money to make us feel financially secure.
We huddled together, secure in the knowledge that the rescue helicopter was on its way.
6

firmly fastened

firmly fastened or tied, and not likely to fall down:
Are you sure that shelf is secure?

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