Meaning

• To make safe; to relieve from apprehensions of, or exposure to, danger; to guard; to protect.

• To put beyond hazard of losing or of not receiving; to make certain; to assure; frequently with against or from, or formerly with of.

  "to secure a creditor against loss; to secure a debt by a mortgage"

• To make fast; to close or confine effectually; to render incapable of getting loose or escaping.

  "to secure a prisoner; to secure a door, or the hatches of a ship"

• To get possession of; to make oneself secure of; to acquire certainly.

  "to secure an estate"

• To plight or pledge.

Meaning

• Free from attack or danger; protected.

• Free from the danger of theft; safe.

• Free from the risk of eavesdropping, interception or discovery; secret.

• Free from anxiety or doubt; unafraid.

• Firm and not likely to fail; stable.

• Free from the risk of financial loss; reliable.

• Confident in opinion; not entertaining, or not having reason to entertain, doubt; certain; sure; commonly used with of.

  "secure of a welcome"

• Overconfident; incautious; careless.