Free from the risk of being intercepted or listened to by unauthorized persons: Only one telephone line in the embassy was secure.
Free from fear, anxiety, or doubt.
Not likely to fail or give way; stable: a secure stepladder.
Firmly fastened: a secure lock.
Reliable; dependable: secure investments.
Assured; certain: With three goals in the first period they had a secure victory, but somehow they lost.
Archaic Careless or overconfident.
To guard from danger or risk of loss: The troops secured the area before the civilians were allowed to return.
To make firm or tight; fasten. See Synonyms at fasten.
To make certain; ensure: The speaker could not secure the goodwill of the audience.
To guarantee payment of (a loan, for example).
To guarantee payment to (a creditor).
To get possession of; acquire: secured a job.
To capture or confine: They secured the suspect in the squad car.
To bring about; effect: secured release of the hostages.
To protect or ensure the privacy or secrecy of (a telephone line, for example).