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.