Adjective. 1: something fixed firmly into place. 2: possessing no feelings of insecurity, anxiety, fear or doubt. 3: well fortified, protected or guarded. 4: safe and secure from theft or attack. 5: safe for secret communication 6: certain victory or achievement. Example: after a great performance, Tonys victory was secure. Verb. 1:To fix something securely or firmly into place. 2: to make something safe from danger or attack. 3: to gain or require something. 4: to ensure or guarantee something. 5: to ensure that a communication is secret and safe. 6: to make something safe on a mode of transportation. Example: to secure cargo.